{description: The DICOM Study Instance UID from which the images were selected, package_name: hl7.fhir.r5.core, name: study-uid, type: token, package_version: 5.0.0, class: unknown, kind: null, url: 'http://hl7.org/fhir/SearchParameter/ImagingSelection-study-uid', version: 5.0.0}