<status value="draft" /> <date value="2023-09-21T13:26:41.2566819+00:00" /> <publisher value="Precision Oncology Project (USZ)" /> <description value="Numerical score used to identify regions in the genome where an individual has lost one copy of a specific gene or allele, often associated with genetic disorders and cancer research." /> <fhirVersion value="4.0.1" /> <kind value="resource" /> <abstract value="false" /> <type value="Observation" /> <baseDefinition value="http://hl7.org/fhir/uv/genomics-reporting/StructureDefinition/genomics-base" /> <derivation value="constraint" /> <differential> <element id="Observation.code"> <path value="Observation.code" /> <patternCodeableConcept> <coding> <system value="http://sequenceontology.org/" /> <code value="SO:0001786" /> </coding> </patternCodeableConcept> </element> <element id="Observation.value[x]"> <path value="Observation.value[x]" /> <short value="LOH score" /> <type> <code value="Quantity" /> </type> </element> </differential> </StructureDefinition>