{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : "mean difference (a type of absolute effect estimate).",
  "system" : "http://terminology.hl7.org/CodeSystem/effect-estimate-type",
  "property" : [ ],
  "codesystem" : "e1aa883b-30b1-5b15-9858-120a51179387",
  "concept_id" : "70dd65c9-24f7-5a53-a1b2-5417b27e1658",
  "ancestors" : {
    "absolute-MeanDiff" : 0
  },
  "id" : "91c04968-422a-4d8d-99c6-f7232d0ceff9",
  "code" : "absolute-MeanDiff",
  "display" : "mean difference",
  "version" : "4.0.1"
}