{
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  "definition" : "Letter",
  "system" : "http://hl7.org/fhir/citation-artifact-classifier",
  "property" : [ ],
  "codesystem" : "19217d42-fe13-572e-b056-cd9d3eebcc77",
  "concept_id" : "f75758da-25b7-5aca-abdc-42f031796a5a",
  "ancestors" : {
    "D016422" : 0
  },
  "id" : "749e12e1-eda6-49de-b9a1-4cf0ee2d2fee",
  "code" : "D016422",
  "display" : "Letter",
  "version" : "5.0.0"
}