“…From a conceptual framework, we considered the categories of general FHIR implementation [ 48 , 59 ], using SMART on FHIR [ 3 , 14 , 22 , 31 ], HL7 API (HAPI)-FHIR server/library/applications [ 14 , 16 , 20 , 32 , 34 - 36 , 40 , 43 , 51 , 54 , 55 , 73 , 76 , 81 , 82 ], and FHIR general framework [ 14 , 40 , 78 ]. In consideration of compatibility, we chose FHIR data model/data exchange [ 5 , 11 , 26 , 45 , 55 , 66 , 67 , 73 ] and defining ontology to align with FHIR [ 44 , 68 , 69 ] as the main categories. In addition, we classified all implementation-related work under the miscellaneous category [ 21 , 25 , 30 , 32 , 47 , 60 , 71 ], such as FHIR implementation of the legacy clinical data repository system, FHIR implementation of the agent-based system, implementation of operational data model metadata [ 86 ] to FHIR questionnaire resource implementation, FHIR implementation of the electronic treatment form, Clinical Asset Mapping Program for FHIR, integration of the architecture of domain information model (ISO/IEEE 11073 DIM) [ 31 ] with FHIR, and FHIR-based decision support systems.…”