Query: Did my cholesterol levels improve between my two last check-ups?, FHIR Resource: {'resourceType': 'Procedure', 'status': 'completed', 'category': None, 'code': {'coding': [{'system': 'http://snomed.info/sct', 'code': '410401003', 'display': 'Nursing care/supplementary surveillance (regime/therapy)'}], 'text': 'Nursing care/supplementary surveillance (regime/therapy)'}, 'subject': {'reference': 'urn:uuid:c4c341f4-7f3a-287e-c087-0dd130ecc2c1'}, 'performedDateTime': None}