Query: When is my next medication review due?, FHIR Resource: {'resourceType': 'Immunization', 'status': 'completed', 'vaccineCode': {'coding': [{'system': 'http://hl7.org/fhir/sid/cvx', 'code': '208', 'display': 'COVID-19, mRNA, LNP-S, PF, 30 mcg/0.3 mL dose'}], 'text': 'COVID-19, mRNA, LNP-S, PF, 30 mcg/0.3 mL dose'}, 'patient': {'reference': 'urn:uuid:050e0d4a-707c-1235-9038-62dfbf1e4244'}, 'occurrenceDateTime': '2021-05-18T12:25:29+05:30', 'primarySource': True}