{
  "package" : "hl7.terminology.r5@6.3.0",
  "definition" : "1M potassium citrate, pH 7.0 2.5 ml, 0.1M magnesium sulfate 5.0 ml, 0.1M N-ethyl malemide 5.0 ml, dH2O 87.5 ml, ammonium sulfate 55gm. Preserve antigens for Immunofluorescence procedures",
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    "valueCode" : "16070"
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    "valueCode" : "_SpecimenAdditiveEntity"
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  "codesystem" : "3a172612-a675-557b-a8fa-4e5bb49e969f",
  "concept_id" : "fceb06b3-bfd1-5e93-871d-c5afaec09a6a",
  "ancestors" : {
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    "_SpecimenAdditiveEntity" : 1,
    "_MaterialEntityClassType" : 2
  },
  "id" : "c957d626-8f9e-4304-90c2-47260c55781e",
  "code" : "MICHTM",
  "display" : "Michel's transport medium",
  "version" : "3.0.0"
}