Choi, Young
Choi, Jae Woo http://orcid.org/0000-0002-7428-8858
Funding for this research was provided by:
The Yonsei University Research Fund (Post Doc. Researcher Supporting Program) of 2019 (2019-12-0129)
Article History
Received: 19 February 2020
Accepted: 5 May 2020
First Online: 13 May 2020
Ethics approval and consent to participate
: Since our study used administrative cohort data, this study was exempt from ethical approval from Yonsei University Institutional Review Board. The requirement for informed consent was waived as the NHIS-HEALS database was constructed after anonymization according to strict confidentiality guidelines.
: Not applicable.
: The authors declare that they have no competing interests.