{
  "package" : "hl7.terminology@6.3.0",
  "definition" : "observational study comparing cohorts.",
  "system" : "http://terminology.hl7.org/CodeSystem/study-type",
  "property" : [ ],
  "codesystem" : "e7eb6755-1be1-5643-9836-39a1d4095087",
  "concept_id" : "7bd6ebf7-49ca-52bb-a372-fbd726cb5002",
  "ancestors" : {
    "cohort" : 0
  },
  "id" : "ae3d59aa-edd6-49b6-903b-aa82e45e303c",
  "code" : "cohort",
  "display" : "comparative cohort study",
  "version" : "1.0.0"
}