{
  "package" : "hl7.terminology.r4@6.3.0",
  "definition" : "a combination of 1 or more RCTs and cohorts.",
  "system" : "http://terminology.hl7.org/CodeSystem/study-type",
  "property" : [ ],
  "codesystem" : "8bf52a19-1286-5616-9439-dbee63d054bc",
  "concept_id" : "6789b643-602a-50e7-a7e4-d0b8427a1fe8",
  "ancestors" : {
    "RCTandCohort" : 0
  },
  "id" : "aaf959dc-fc14-4a25-827b-cc07523c06f3",
  "code" : "RCTandCohort",
  "display" : "mixed RCT and cohort",
  "version" : "1.0.0"
}