Received: 3 June 2022
Accepted: 19 March 2023
First Online: 18 May 2023
: The Institutional Review Board of the NHIS and Soongsil University Institutional Review Board (IRB) approved this study (SSU-202003-HR-201-01) and waived the requirement for informed consent because anonymized and de-identified data were used in this study.
: Not applicable.
: The authors declare that they have no competing interests.