{
  "resourceType": "StructureDefinition",
  "id": "1",
  "url": "http://example.org/fhir/StructureDefinition/MyPatient",
  "version": "1",
  "name": "MyPatient",
  "status": "active",
  "fhirVersion": "3.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Patient",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Patient",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Patient.name",
        "path": "Patient.name",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Patient.animal",
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-explicit-type-name",
            "valueString": "Animal"
          }
        ],
        "path": "Patient.animal",
        "max": "0"
      },
      {
        "id": "Patient.generalPractitioner",
        "path": "Patient.generalPractitioner",
        "max": "0"
      },
      {
        "id": "Patient.managingOrganization",
        "path": "Patient.managingOrganization",
        "max": "0"
      }
    ]
  }
}