{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : "The study prematurely ended due to toxicity.",
  "system" : "http://terminology.hl7.org/CodeSystem/research-study-reason-stopped",
  "property" : [ ],
  "codesystem" : "ec104c6a-87e6-5f00-a490-efddec554fd4",
  "concept_id" : "8f2f5841-4c99-59a9-bf9c-6b184804fde0",
  "ancestors" : {
    "closed-due-to-toxicity" : 0
  },
  "id" : "9f441b5e-298b-4e85-a481-0acea9906de5",
  "code" : "closed-due-to-toxicity",
  "display" : "Closed due to toxicity",
  "version" : "4.0.1"
}