<DeviceAssociation xmlns="http://hl7.org/fhir"><id value="robot-association"/><contained><Patient><id value="example-patient"/><name><family value="Doe"/><given value="John"/></name></Patient></contained><contained><Practitioner><id value="example-practitioner"/><name><family value="Nguyen"/><given value="Alex"/></name></Practitioner></contained><contained><Device><id value="surgical-robot"/><status value="active"/><name><value value="Da Vinci Xi"/><type><coding><code value="model-name"/></coding></type></name><type><coding><system value="http://snomed.info/sct"/><code value="466893009"/><display value="Robotic surgical system"/></coding></type></Device></contained><device><reference value="#surgical-robot"/></device><relationship><coding><system value="http://hl7.org/fhir/deviceassociation-relationship"/><code value="used-by"/><display value="Used By"/></coding></relationship><status value="active"/><relationshipStatus><coding><system value="http://hl7.org/fhir/deviceassociation-relationship-status"/><code value="ended"/><display value="Ended"/></coding></relationshipStatus><subject><reference value="#example-patient"/></subject><focus><reference value="#example-practitioner"/></focus><period><start value="2025-07-01T08:00:00Z"/><end value="2025-07-01T12:00:00Z"/></period></DeviceAssociation>