{description: '[Observation](observation.html): Obtained date/time. If the obtained element is a period, a date that falls in the period\r\n', package_name: hl7.fhir.r5.search, name: date, type: date, package_version: 5.0.0-draft-final, class: unknown, kind: null, url: 'http://hl7.org/fhir/SearchParameter/clinical-date', version: 5.0.0-draft-final}