{description: Who or what participated in the activities related to the allergy or intolerance, package_name: hl7.fhir.r6.core, name: participant, type: reference, package_version: 6.0.0-ballot1, class: unknown, kind: null, url: 'http://hl7.org/fhir/SearchParameter/AllergyIntolerance-participant', version: 6.0.0-ballot1}