1. Korea Health Information Service. Healthcare Information Standard [Internet]. Seoul, Korea: Korea Health Information Service;c2022. [cited at 2023 Jan 28]. Available from:
https://hins.or.kr/index.es?sid=a2.
2. Chandler AD. Strategy and structure. Cambridge (MA): MIT Press;1962.
3. Observational Health Data Sciences and Informatics. Standardized data: the OMOP Common Data Model [Internet]. [place unknown]: Observational Health Data Sciences and Informatics;c2023. [cited at 2023 Jan 28]. Available from:
https://www.ohdsi.org/data-standardization/.