{
  "package" : "hl7.fhir.r5.core@5.0.0",
  "definition" : "A crossover cohort design in which all participants are in a single cohort with the same order of exposures.",
  "system" : "http://hl7.org/fhir/study-design",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "SEVCO:01012"
  } ],
  "codesystem" : "bb32c5f8-166a-5db4-919c-9554be080f5c",
  "concept_id" : "f6d6f406-9dbe-53f6-b54f-6fc10b74a64b",
  "ancestors" : {
    "SEVCO:01010" : 2,
    "SEVCO:01012" : 1,
    "SEVCO:01025" : 0
  },
  "id" : "568825a6-39ef-4383-908f-55d329a5b04c",
  "code" : "SEVCO:01025",
  "display" : "Single-arm crossover design",
  "version" : "5.0.0"
}