{
  "resourceType" : "Group",
  "identifier" : [" Identifier "], 
  "type" : "<code>", 
  "actual" : "<boolean>", 
  "code" : " CodeableConcept ", 
  "name" : "<string>", 
  "quantity" : "<unsignedInt>", 
  "characteristic" : [{
    "code" : " CodeableConcept ",
    "value": "value",
    "valueCodeableConcept" : " CodeableConcept ",
    "valueBoolean" : "<boolean>",
    "valueQuantity" : " Quantity ",
    "valueRange" : " Range ",
    "exclude" : "<boolean>", 
    "period" : " Period " 
  }],
  "member" : [{
    "entity" : " Reference(Patient|Practitioner|Device|Medication|Substance) ", 
    "period" : " Period ", 
    "inactive" : "<boolean>"
  }]
}