{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "The study prematurely ended due to toxicity.",
  "system" : "http://terminology.hl7.org/CodeSystem/research-study-reason-stopped",
  "property" : [ ],
  "codesystem" : "0b472e69-bd96-5abb-ba75-38389fda25a8",
  "concept_id" : "8f2f5841-4c99-59a9-bf9c-6b184804fde0",
  "ancestors" : {
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  },
  "id" : "707722f6-9e92-451e-b04f-be147467542a",
  "code" : "closed-due-to-toxicity",
  "display" : "Closed due to toxicity",
  "version" : "4.0.1"
}