{
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  "system" : "http://terminology.hl7.org/CodeSystem/research-subject-milestone",
  "property" : [ ],
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  "concept_id" : "2d3caca3-7093-5875-bab5-4b9cec7e0f31",
  "ancestors" : {
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  },
  "id" : "3d961f0f-5ad1-46d1-ad0c-79dd98c3401f",
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}