HL7 itself

{
  "resourceType": "Organization",
  "id": "hl7",
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n      Health Level Seven International\n      <br/>\n\t\t\t\t3300 Washtenaw Avenue, Suite 227\n      <br/>\n\t\t\t\tAnn Arbor, MI 48104\n      <br/>\n\t\t\t\tUSA\n      <br/>\n\t\t\t\t(+1) 734-677-7777 (phone)\n      <br/>\n\t\t\t\t(+1) 734-677-6622 (fax)\n      <br/>\n\t\t\t\tE-mail:  \n      <a href=\"mailto:hq@HL7.org\">hq@HL7.org</a>\n    \n    </div>"
  },
  "name": "Health Level Seven International",
  "alias": [
    "HL7 International"
  ],
  "contact": [
    {
      "extension": [
        {
          "url": "http://hl7.org/fhir/StructureDefinition/extended-contact-availability",
          "valueAvailability": {
            "availableTime": [
              {
                "daysOfWeek": [
                  "mon",
                  "tue",
                  "wed",
                  "thu",
                  "fri"
                ],
                "availableStartTime": "09:00:00",
                "_availableStartTime": {
                  "extension": [
                    {
                      "url": "http://hl7.org/fhir/StructureDefinition/timezone",
                      "valueCode": "America/New_York"
                    }
                  ]
                },
                "availableEndTime": "07:00:00",
                "_availableEndTime": {
                  "extension": [
                    {
                      "url": "http://hl7.org/fhir/StructureDefinition/timezone",
                      "valueCode": "America/New_York"
                    }
                  ]
                }
              }
            ],
            "notAvailableTime": [
              {
                "description": "Public holidays"
              }
            ]
          }
        }
      ],
      "telecom": [
        {
          "system": "phone",
          "value": "(+1) 734-677-7777"
        },
        {
          "system": "fax",
          "value": "(+1) 734-677-6622"
        },
        {
          "system": "email",
          "value": "hq@HL7.org"
        }
      ],
      "address": {
        "line": [
          "3300 Washtenaw Avenue, Suite 227"
        ],
        "city": "Ann Arbor",
        "state": "MI",
        "postalCode": "48104",
        "country": "USA"
      }
    }
  ],
  "endpoint": [
    {
      "reference": "Endpoint/example"
    }
  ]
}