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"
  }]
}