Funding for this research was provided by:
Korea Health Industry Development Institute (HI14C1277)
Received: 29 August 2021
Accepted: 20 July 2022
First Online: 28 July 2022
: This study was approved by the Institutional Review Board of Seoul National University Hospital (2002-057-1100). The requirement for informed consent was waived as the HIRA database was anonymized with strict confidentiality guidelines.
: Not applicable.
: The authors declare that they have no competing interests.