{
  "resourceType": "ResearchDefinition",
  "id": "example",
  "status": "draft",
  "population": {
    "reference": "ResearchElementDefinition/example"
  },
  "meta": {
    "tag": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/v3-ActReason",
        "code": "HTEST",
        "display": "test health data"
      }
    ]
  }
}