{
  "DM": {
    "label": "Demographics",
    "class": "Special Purpose",
    "variables": 18,
    "structure": "One record per subject",
    "keys": [
      "STUDYID",
      "USUBJID"
    ]
  },
  "AE": {
    "label": "Adverse Events",
    "class": "Events",
    "variables": 16,
    "structure": "One record per adverse event per subject",
    "keys": [
      "STUDYID",
      "USUBJID",
      "AESEQ",
      "AETERM"
    ]
  },
  "LB": {
    "label": "Laboratory Test Results",
    "class": "Findings",
    "variables": 16,
    "structure": "One record per lab test per timepoint per subject",
    "keys": [
      "STUDYID",
      "USUBJID",
      "LBTESTCD",
      "LBDTC"
    ]
  },
  "CM": {
    "label": "Concomitant Medications",
    "class": "Interventions",
    "variables": 11,
    "structure": "One record per medication per subject",
    "keys": [
      "STUDYID",
      "USUBJID",
      "CMTRT"
    ]
  },
  "VS": {
    "label": "Vital Signs",
    "class": "Findings",
    "variables": 12,
    "structure": "One record per vital sign measurement per subject",
    "keys": [
      "STUDYID",
      "USUBJID",
      "VSTESTCD",
      "VSDTC"
    ]
  },
  "EX": {
    "label": "Exposure",
    "class": "Interventions",
    "variables": 9,
    "structure": "One record per dosing occasion per subject",
    "keys": [
      "STUDYID",
      "USUBJID",
      "EXDTC"
    ]
  },
  "DS": {
    "label": "Disposition",
    "class": "Events",
    "variables": 5,
    "structure": "One record per disposition event per subject",
    "keys": [
      "STUDYID",
      "USUBJID",
      "DSDECOD"
    ]
  },
  "MH": {
    "label": "Medical History",
    "class": "Events",
    "variables": 5,
    "structure": "One record per medical history event per subject",
    "keys": [
      "STUDYID",
      "USUBJID",
      "MHTERM"
    ]
  }
}