* https://docs.google.com/spreadsheets/d/11ZmwGxnXViLkTVdX5Vi0FP-Gh4AD2HZEfYOhzZptZfw/edit#gid=1212761421 (by OHDSI FHIR WG)
* https://docs.google.com/spreadsheets/d/11ZmwGxnXViLkTVdX5Vi0FP-Gh4AD2HZEfYOhzZptZfw/edit#gid=0 (by Daniella Meeker)
* https://docs.google.com/spreadsheets/d/1Qo1gBUk-pY4H-yI-nURCTXGbYRgy7tZQBQus9kuSGrw/edit?usp=sharing (By Georgia Tech)
* https://drive.google.com/file/d/194nwCX3dBMU7cfCO8no7XFVHA6I3WlYm/view?usp=sharing (By CDMH Project)
* Guidance on the profiles to be used to map FHIR Resources to OMOP
* http://hl7.org/FHIR/us/daf/2016Sep/daf-research-developer.html
* http://hl7.org/fhir/us/daf-research/2017Jan/daf-research-profile.html
* http://hl7.org/fhir/us/daf-research/2017Jan/index.html
* A detailed data element level mapping can be accessed here:
** https://docs.google.com/spreadsheets/d/11ZmwGxnXViLkTVdX5Vi0FP-Gh4AD2HZEfYOhzZptZfw/edit#gid=0
* Omop on FHIR Project Page
* http://omoponfhir.org/fhir_omop_mapping.html (Release 1)
* https://docs.google.com/spreadsheets/d/1Qo1gBUk-pY4H-yI-nURCTXGbYRgy7tZQBQus9kuSGrw/edit?usp=sharing (Release 2 mapping)
* FHIR Ontop OHDSI - https://github.com/BD2KOnFHIR/FHIROntopOHDSI