{
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  },
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  "status" : "completed",
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    "coding" : [ {
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      "code" : "FLUVAX"
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    "text" : "Fluvax (Influenza)"
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  "patient" : {
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  "occurrenceDateTime" : "2017-10-11",
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      "display" : "left arm"
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      "system" : "http://terminology.hl7.org/CodeSystem/v3/RouteOfAdministration",
      "code" : "IM",
      "display" : "Injection, intramuscular"
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  },
  "doseQuantity" : {
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    "system" : "http://unitsofmeasure.org",
    "code" : "mg"
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}