{
    "Direct_Mappings": [
        {
            "UDS3_variable": "ANYMEDS",
            "UDS4_variable": "ANYMEDS",
            "crosswalk_remappings": [
                {
                    "mapping_type": "UDS Form",
                    "mappings": [
                        {
                            "UDS3_value": "A4",
                            "UDS4_value": "A4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap question number",
                    "mappings": [
                        {
                            "UDS3_value": 1,
                            "UDS4_value": 1,
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap field label",
                    "mappings": [
                        {
                            "UDS3_value": "Is the subject currently taking any medications?",
                            "UDS4_value": "Is the participant currently taking any medications?",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Data type",
                    "mappings": [
                        {
                            "UDS3_value": "Numeric factor",
                            "UDS4_value": "Numeric factor",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Conformity",
                    "mappings": [
                        {
                            "UDS3_value": "0-1",
                            "UDS4_value": "0-1",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": 0,
                            "UDS4_value": 0,
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "1",
                            "UDS4_value": "1",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "0 No (<b>END FORM HERE</b>)",
                            "UDS4_value": "No",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "1 Yes",
                            "UDS4_value": "Yes",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "PACKET__A4",
            "UDS4_variable": "PACKET__A4",
            "crosswalk_remappings": [
                {
                    "mapping_type": "UDS Form",
                    "mappings": [
                        {
                            "UDS3_value": "FORM_HEADER__A4",
                            "UDS4_value": "FORM_HEADER__A4",
                            "reversible": "Yes",
                            "note": "UDS3 PACKET__A4 in DED RDD only"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap question number",
                    "mappings": [
                        {
                            "UDS3_value": "H0",
                            "UDS4_value": "H4",
                            "reversible": "Yes",
                            "note": "UDS3 PACKET__A4 in DED RDD only; Imputed position numbers"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap field label",
                    "mappings": [
                        {
                            "UDS3_value": "Packet code__A4",
                            "UDS4_value": "Packet Code__A4",
                            "reversible": "Yes",
                            "note": "UDS3 PACKET__A4 in DED RDD only"
                        }
                    ]
                },
                {
                    "mapping_type": "Data type",
                    "mappings": [
                        {
                            "UDS3_value": "Character",
                            "UDS4_value": "Character factor",
                            "reversible": "Yes",
                            "note": "UDS3 PACKET__A4 in DED RDD only"
                        }
                    ]
                },
                {
                    "mapping_type": "Conformity",
                    "mappings": [
                        {
                            "UDS3_value": "I, F, TI, T",
                            "UDS4_value": "I, F, T",
                            "reversible": "NA",
                            "note": "UDS3 PACKET__A4 in DED RDD only"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "I",
                            "UDS4_value": "I",
                            "reversible": "Yes",
                            "note": "UDS3 PACKET__A4 in DED RDD only"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "F",
                            "UDS4_value": "F",
                            "reversible": "Yes",
                            "note": "UDS3 PACKET__A4 in DED RDD only"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "T",
                            "UDS4_value": "T",
                            "reversible": "Yes",
                            "note": "UDS3 PACKET__A4 in DED RDD only"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Initial Visit Packet",
                            "UDS4_value": "Initial Visit Packet",
                            "reversible": "Yes",
                            "note": "UDS3 PACKET__A4 in DED RDD only"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Follow-up Visit Packet",
                            "UDS4_value": "Follow-up Visit Packet",
                            "reversible": "Yes",
                            "note": "UDS3 PACKET__A4 in DED RDD only"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Telephone Visit Packet",
                            "UDS4_value": "Telephone Visit Packet",
                            "reversible": "Yes",
                            "note": "UDS3 PACKET__A4 in DED RDD only"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "PTID__A4",
            "UDS4_variable": "PTID__A4",
            "crosswalk_remappings": [
                {
                    "mapping_type": "UDS Form",
                    "mappings": [
                        {
                            "UDS3_value": "FORM_HEADER__A4",
                            "UDS4_value": "FORM_HEADER__A4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap question number",
                    "mappings": [
                        {
                            "UDS3_value": "H1",
                            "UDS4_value": "H1",
                            "reversible": "Yes",
                            "note": "Imputed position numbers"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap field label",
                    "mappings": [
                        {
                            "UDS3_value": "ADC Subject ID__A4",
                            "UDS4_value": "PTID__A4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Data type",
                    "mappings": [
                        {
                            "UDS3_value": "Character",
                            "UDS4_value": "Character",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Conformity",
                    "mappings": [
                        {
                            "UDS3_value": "Any text or numbers with the exception of single quotes (‘), double quotes (“), ampersands (&), and percentage signs (%)",
                            "UDS4_value": "Any text or numbers with the exception of single quotes (‘), double quotes (“), ampersands (&), and percentage signs (%)",
                            "reversible": "NA",
                            "note": "NA"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "VISITNUM__A4",
            "UDS4_variable": "VISITNUM__A4",
            "crosswalk_remappings": [
                {
                    "mapping_type": "UDS Form",
                    "mappings": [
                        {
                            "UDS3_value": "FORM_HEADER__A4",
                            "UDS4_value": "FORM_HEADER__A4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap question number",
                    "mappings": [
                        {
                            "UDS3_value": "H7",
                            "UDS4_value": "H3",
                            "reversible": "Yes",
                            "note": "Imputed position numbers"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap field label",
                    "mappings": [
                        {
                            "UDS3_value": "ADC Visit #__A4",
                            "UDS4_value": "ADC Visit ID__A4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Data type",
                    "mappings": [
                        {
                            "UDS3_value": "Entry integer",
                            "UDS4_value": "Entry integer",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Conformity",
                    "mappings": [
                        {
                            "UDS3_value": "Non-negative",
                            "UDS4_value": "Non-negative",
                            "reversible": "NA",
                            "note": "NA"
                        }
                    ]
                }
            ]
        }
    ],
    "Conditional_Consistency": [
        {
            "UDS3_variable": "ADCID__A4",
            "UDS4_variable": "ADCID__A4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "UDS Form",
                    "mappings": [
                        {
                            "UDS3_value": "FORM_HEADER__A4",
                            "UDS4_value": "FORM_HEADER__A4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap question number",
                    "mappings": [
                        {
                            "UDS3_value": "H3",
                            "UDS4_value": "H2",
                            "reversible": "Yes",
                            "note": "Imputed position numbers"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap field label",
                    "mappings": [
                        {
                            "UDS3_value": "Center ID__A4",
                            "UDS4_value": "ADC name__A4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Data type",
                    "mappings": [
                        {
                            "UDS3_value": "Numeric factor",
                            "UDS4_value": "Numeric factor",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Conformity",
                    "mappings": [
                        {
                            "UDS3_value": "2-22, 25-28, 30-43",
                            "UDS4_value": "2, 4, 6-16, 18-19, 21-22, 26-27, 30, 31, 33, 35, 37-43, 46-49, 65, 67- 68",
                            "reversible": "NA",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "2",
                            "UDS4_value": "2",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "4",
                            "UDS4_value": "4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "6",
                            "UDS4_value": "6",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "7",
                            "UDS4_value": "7",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "8",
                            "UDS4_value": "8",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "9",
                            "UDS4_value": "9",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "10",
                            "UDS4_value": "10",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "11",
                            "UDS4_value": "11",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "12",
                            "UDS4_value": "12",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "13",
                            "UDS4_value": "13",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "14",
                            "UDS4_value": "14",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "15",
                            "UDS4_value": "15",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "16",
                            "UDS4_value": "16",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "18",
                            "UDS4_value": "18",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "19",
                            "UDS4_value": "19",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "21",
                            "UDS4_value": "21",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "22",
                            "UDS4_value": "22",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "26",
                            "UDS4_value": "26",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "27",
                            "UDS4_value": "27",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "30",
                            "UDS4_value": "30",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "31",
                            "UDS4_value": "31",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "33",
                            "UDS4_value": "33",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "35",
                            "UDS4_value": "35",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "37",
                            "UDS4_value": "37",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "38",
                            "UDS4_value": "38",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "39",
                            "UDS4_value": "39",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "40",
                            "UDS4_value": "40",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "41",
                            "UDS4_value": "41",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "42",
                            "UDS4_value": "42",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "43",
                            "UDS4_value": "43",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Boston University",
                            "UDS4_value": "Boston University ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Columbia University",
                            "UDS4_value": "Columbia University ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Emory University",
                            "UDS4_value": "Emory University",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Massachusetts ADRC",
                            "UDS4_value": "Massachusetts ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Indiana University",
                            "UDS4_value": "Indiana University ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Johns Hopkins University",
                            "UDS4_value": "Johns Hopkins ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Mayo Clinic",
                            "UDS4_value": "Mayo Clinic ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Mount Sinai",
                            "UDS4_value": "Mount Sinai School of Medicine ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "New York University",
                            "UDS4_value": "NYU ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Northwestern University",
                            "UDS4_value": "Northwestern ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Oregon Health & Science University",
                            "UDS4_value": "Oregon Health and Science University",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Rush University",
                            "UDS4_value": "Rush University Alzheimer's Disease Center",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "University of California",
                            "UDS4_value": "UC Davis ADRC",
                            "reversible": "Yes",
                            "note": "Mapping to UDS4 requires response level (16)"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "University of California",
                            "UDS4_value": "UCSD Shiley-Marcos ADRC",
                            "reversible": "Yes",
                            "note": "Mapping to UDS4 requires response level (18)"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "University of Kentucky",
                            "UDS4_value": "University of Kentucky ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "University of Pennsylvania",
                            "UDS4_value": "Penn ADRC / Penn Memory Center",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "University of Pittsburgh",
                            "UDS4_value": "University of Pittsburgh ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "University of Washington",
                            "UDS4_value": "University of Washington ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Washington University in Saint Louis",
                            "UDS4_value": "Washington University Knight ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "University of Southern California",
                            "UDS4_value": "USC ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "University of California",
                            "UDS4_value": "UC Irvine",
                            "reversible": "Yes",
                            "note": "Mapping to UDS4 requires response level (31)"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Arizona ADC",
                            "UDS4_value": "Arizona ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "University of California",
                            "UDS4_value": "UCSF ADRC",
                            "reversible": "Yes",
                            "note": "Mapping to UDS4 requires response level (35)"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "University of Wisconsin",
                            "UDS4_value": "Wisconsin ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "University of Kansas",
                            "UDS4_value": "University of Kansas ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Stanford University #2",
                            "UDS4_value": "Stanford ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Yale University",
                            "UDS4_value": "Yale University ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Florida ADRC",
                            "UDS4_value": "1Florida ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Wake Forest University",
                            "UDS4_value": "Wake Forest University",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Univeristy of Michigan AD",
                            "UDS4_value": "University of Michigan ADRC",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "FORMVER__A4",
            "UDS4_variable": "FORMVER__A4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "UDS Form",
                    "mappings": [
                        {
                            "UDS3_value": "FORM_HEADER__A4",
                            "UDS4_value": "FORM_HEADER__A4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap question number",
                    "mappings": [
                        {
                            "UDS3_value": "H2",
                            "UDS4_value": "H5",
                            "reversible": "Yes",
                            "note": "Imputed position numbers"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap field label",
                    "mappings": [
                        {
                            "UDS3_value": "Form Version Number__A4",
                            "UDS4_value": "Form version number__A4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Data type",
                    "mappings": [
                        {
                            "UDS3_value": "Numeric factor",
                            "UDS4_value": "Numeric factor",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Conformity",
                    "mappings": [
                        {
                            "UDS3_value": "3, 3.1",
                            "UDS4_value": "3-4",
                            "reversible": "NA",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "3",
                            "UDS4_value": "3",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "3",
                            "UDS4_value": "3",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "INITIALS__A4",
            "UDS4_variable": "INITIALSA4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "UDS Form",
                    "mappings": [
                        {
                            "UDS3_value": "FORM_HEADER__A4",
                            "UDS4_value": "A4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap question number",
                    "mappings": [
                        {
                            "UDS3_value": "H8",
                            "UDS4_value": "0b",
                            "reversible": "Yes",
                            "note": "Imputed position numbers UDS3"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap field label",
                    "mappings": [
                        {
                            "UDS3_value": "Examiner's initials (xxx)__A4",
                            "UDS4_value": "0b. A4 Participant Medications - Examiner's initials",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Data type",
                    "mappings": [
                        {
                            "UDS3_value": "Character",
                            "UDS4_value": "Character",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Conformity",
                    "mappings": [
                        {
                            "UDS3_value": "Any text or numbers with the exception of single quotes (‘), double quotes (“), ampersands (&), and percentage signs (%)",
                            "UDS4_value": "Any text or numbers with the exception of single quotes (‘), double quotes (“), ampersands (&), and percentage signs (%)",
                            "reversible": "NA",
                            "note": "NA"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "LANGA4",
            "UDS4_variable": "LANGA4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "UDS Form",
                    "mappings": [
                        {
                            "UDS3_value": "Z1X",
                            "UDS4_value": "A4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap question number",
                    "mappings": [
                        {
                            "UDS3_value": "4a",
                            "UDS4_value": "0c",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap field label",
                    "mappings": [
                        {
                            "UDS3_value": "4a. Language used for A4 Subject Medications",
                            "UDS4_value": "0c. A4 Participant Medications - Language",
                            "reversible": "Yes",
                            "note": "Stylistic change noted in UDS3"
                        }
                    ]
                },
                {
                    "mapping_type": "Data type",
                    "mappings": [
                        {
                            "UDS3_value": "Numeric factor",
                            "UDS4_value": "Numeric factor",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Conformity",
                    "mappings": [
                        {
                            "UDS3_value": "1-2",
                            "UDS4_value": "1-2",
                            "reversible": "NA",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "1",
                            "UDS4_value": "1",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "2",
                            "UDS4_value": "2",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "1 English",
                            "UDS4_value": "English",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "2 Spanish",
                            "UDS4_value": "Spanish",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                }
            ]
        }
    ],
    "Structured_Transformations": [
        {
            "UDS3_variable": "A4SUB",
            "UDS4_variable": "MODEA4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "UDS Form",
                    "mappings": [
                        {
                            "UDS3_value": "Z1X",
                            "UDS4_value": "A4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap question number",
                    "mappings": [
                        {
                            "UDS3_value": "4b",
                            "UDS4_value": "0d",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap field label",
                    "mappings": [
                        {
                            "UDS3_value": "4b. Submitted A4 Subject Medications",
                            "UDS4_value": "0d. A4 Participant Medications - In-person, remote, or not completed?",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Data type",
                    "mappings": [
                        {
                            "UDS3_value": "Numeric factor",
                            "UDS4_value": "Numeric factor",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Conformity",
                    "mappings": [
                        {
                            "UDS3_value": "0-1",
                            "UDS4_value": "1-2",
                            "reversible": "NA",
                            "note": "NA"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "TELCOG",
            "UDS4_variable": "RMREASA4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "1",
                            "UDS4_value": "1",
                            "reversible": "Yes",
                            "note": "T1 variables mutually exclusive, ADRC should decide priority"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Yes",
                            "UDS4_value": "Too cognitively impaired",
                            "reversible": "Yes",
                            "note": "T1 variables mutually exclusive, ADRC should decide priority"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "TELCOG & TELILL & TELHOME & TELREFU & TELOTHR",
            "UDS4_variable": "MODEA4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "Structured mapping",
                    "mappings": [
                        {
                            "UDS3_value": "0 & 0 & 0 & 0 & 0",
                            "UDS4_value": "1",
                            "reversible": "Yes",
                            "note": "UDS3 T1 specific structured mapping"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "TELCOG | TELILL | TELHOME | TELREFU | TELOTHR",
            "UDS4_variable": "MODEA4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "Structured mapping",
                    "mappings": [
                        {
                            "UDS3_value": "1 | 1 | 1 | 1 | 1",
                            "UDS4_value": "2",
                            "reversible": "Yes",
                            "note": "UDS3 T1 specific structured mapping"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "TELCOG | TELILL | TELHOME | TELREFU | TELOTHR",
            "UDS4_variable": "RMREASA4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "UDS Form",
                    "mappings": [
                        {
                            "UDS3_value": "T1",
                            "UDS4_value": "A4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap question number",
                    "mappings": [
                        {
                            "UDS3_value": "1",
                            "UDS4_value": "0d1",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap field label",
                    "mappings": [
                        {
                            "UDS3_value": "Why is the UDS telephone follow-up protocol being used to obtain data about the subject?",
                            "UDS4_value": "0d1. If 'A4 Participant Medications'  form was completed remotely, specify reason",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Data type",
                    "mappings": [
                        {
                            "UDS3_value": "Numeric factor",
                            "UDS4_value": "Numeric factor",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Conformity",
                    "mappings": [
                        {
                            "UDS3_value": "0-1",
                            "UDS4_value": "1-5",
                            "reversible": "NA",
                            "note": "NA"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "TELHOME",
            "UDS4_variable": "RMREASA4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "1",
                            "UDS4_value": "3",
                            "reversible": "Yes",
                            "note": "T1 variables mutually exclusive, ADRC should decide priority"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Yes",
                            "UDS4_value": "Homebound or nursing home",
                            "reversible": "Yes",
                            "note": "T1 variables mutually exclusive, ADRC should decide priority"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "TELILL",
            "UDS4_variable": "RMREASA4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "1",
                            "UDS4_value": "2",
                            "reversible": "Yes",
                            "note": "T1 variables mutually exclusive, ADRC should decide priority"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Yes",
                            "UDS4_value": "Too physically impaired",
                            "reversible": "Yes",
                            "note": "T1 variables mutually exclusive, ADRC should decide priority"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "TELOTHR",
            "UDS4_variable": "RMREASA4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "1",
                            "UDS4_value": "5",
                            "reversible": "Yes",
                            "note": "T1 variables mutually exclusive, ADRC should decide priority"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Yes",
                            "UDS4_value": "Other",
                            "reversible": "Yes",
                            "note": "T1 variables mutually exclusive, ADRC should decide priority"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "TELREFU",
            "UDS4_variable": "RMREASA4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "1",
                            "UDS4_value": "4",
                            "reversible": "Yes",
                            "note": "T1 variables mutually exclusive, ADRC should decide priority"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Yes",
                            "UDS4_value": "Refused in-person visit",
                            "reversible": "Yes",
                            "note": "T1 variables mutually exclusive, ADRC should decide priority"
                        }
                    ]
                }
            ]
        },
        {
            "UDS3_variable": "VISITMO__A4 & VISITDAY__A4 & VISITYR__A4",
            "UDS4_variable": "FRMDATEA4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "UDS Form",
                    "mappings": [
                        {
                            "UDS3_value": "FORM_HEADER__A4",
                            "UDS4_value": "A4",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap question number",
                    "mappings": [
                        {
                            "UDS3_value": "H4 & H5 & H6",
                            "UDS4_value": "0a",
                            "reversible": "Yes",
                            "note": "Imputed position numbers UDS3"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap field label",
                    "mappings": [
                        {
                            "UDS3_value": "A4 Subject Medications__Form date – month & A4 Subject Medications__Form date – day & A4 Subject Medications__Form date – year",
                            "UDS4_value": "0a. A4 Participant Medications - Form date",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Data type",
                    "mappings": [
                        {
                            "UDS3_value": "Entry integer & Entry integer & Entry integer",
                            "UDS4_value": "Date",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Conformity",
                    "mappings": [
                        {
                            "UDS3_value": "1-12 & 1-31 & 2005-present year",
                            "UDS4_value": "After 9/1/2005",
                            "reversible": "NA",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Structured mapping",
                    "mappings": [
                        {
                            "UDS3_value": "strplit(FRMDATEA4, \"/\")",
                            "UDS4_value": "paste(VISITMO__A4, \"/\", VISITDAY_A4, \"/\", VISITYR_A4)",
                            "reversible": "Yes",
                            "note": "Structured mapping presented as R expression"
                        }
                    ]
                }
            ]
        }
    ],
    "High_Complexity": [
        {
            "UDS3_variable": "TELMOD",
            "UDS4_variable": "RMMODEA4",
            "crosswalk_mappings": [
                {
                    "mapping_type": "UDS Form",
                    "mappings": [
                        {
                            "UDS3_value": "T1",
                            "UDS4_value": "A4",
                            "reversible": "Conditional",
                            "note": "Reversible to a single T1 form for ANY UDS4 remote implementation"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap question number",
                    "mappings": [
                        {
                            "UDS3_value": "2",
                            "UDS4_value": "0d1a",
                            "reversible": "Conditional",
                            "note": "Reversible to a single T1 form for ANY UDS4 remote implementation"
                        }
                    ]
                },
                {
                    "mapping_type": "UDS REDCap field label",
                    "mappings": [
                        {
                            "UDS3_value": "What modality of communication was used to collect this remote UDS packet?",
                            "UDS4_value": "0d1a. What modality was used to collect this remote 'A4 Participant Medications' form?",
                            "reversible": "Conditional",
                            "note": "Reversible to a single T1 form for ANY UDS4 remote implementation"
                        }
                    ]
                },
                {
                    "mapping_type": "Data type",
                    "mappings": [
                        {
                            "UDS3_value": "Numeric factor",
                            "UDS4_value": "Numeric factor",
                            "reversible": "Conditional",
                            "note": "Reversible to a single T1 form for ANY UDS4 remote implementation"
                        }
                    ]
                },
                {
                    "mapping_type": "Conformity",
                    "mappings": [
                        {
                            "UDS3_value": "1-3",
                            "UDS4_value": "1-2",
                            "reversible": "NA",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "1",
                            "UDS4_value": "1",
                            "reversible": "Yes",
                            "note": "Reversible to a single T1 form for ANY UDS4 remote implementation"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LEVELS",
                    "mappings": [
                        {
                            "UDS3_value": "2",
                            "UDS4_value": "2",
                            "reversible": "Yes",
                            "note": "Reversible to a single T1 form for ANY UDS4 remote implementation"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Telephone",
                            "UDS4_value": "Telephone",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                },
                {
                    "mapping_type": "Response LABELS",
                    "mappings": [
                        {
                            "UDS3_value": "Video-assisted conference",
                            "UDS4_value": "Video",
                            "reversible": "Yes",
                            "note": "NA"
                        }
                    ]
                }
            ]
        }
    ]
}