<NamingSystem xmlns="http://hl7.org/fhir">
  <name value="researchstudy-identifier" />
  <status value="draft" />
  <kind value="identifier" />
  <date value="2017-09-15" />
  <publisher value="Clinicalsite.org" />
  <description value="Identifier for research studies" />
  <usage value="" />
  <uniqueId>
    <type value="uri" />
    <value value="http://clinicalsite.org/fhir/NamingSystem/researchstudy-identifier" />
    <preferred value="true" />
    <period>
      <start value="2017-12-14" />
    </period>
  </uniqueId>
</NamingSystem>