Query: What was my Body Mass Index (BMI) measurement in my last check up?, FHIR Resource: {'resourceType': 'Encounter', 'status': 'finished', 'class': {'system': 'http://terminology.hl7.org/CodeSystem/v3-ActCode', 'code': 'AMB'}, 'type': [{'coding': [{'system': 'http://snomed.info/sct', 'code': '410620009', 'display': 'Well child visit (procedure)'}], 'text': 'Well child visit (procedure)'}], 'subject': {'reference': 'urn:uuid:7b42f6f1-12a4-7f81-e119-2cb0ac9a231e', 'display': 'Zane918 Billy698 Zemlak964'}, 'participant': [{'type': [{'coding': [{'system': 'http://terminology.hl7.org/CodeSystem/v3-ParticipationType', 'code': 'PPRF', 'display': 'primary performer'}], 'text': 'primary performer'}], 'period': {'start': '2020-07-22T00:53:28+05:30', 'end': '2020-07-22T01:08:28+05:30'}, 'individual': {'reference': 'Practitioner?identifier=http://hl7.org/fhir/sid/us-npi|9999964494', 'display': 'Dr. Fredrick998 Harvey63'}}], 'period': {'start': '2020-07-22T00:53:28+05:30', 'end': '2020-07-22T01:08:28+05:30'}}