Funding for this research was provided by:
Asan Foundation (2020IB003)
Received: 22 June 2021
Accepted: 5 October 2021
First Online: 19 October 2021
: This study received approval from the Institutional Review Boards of Asan Medical Center (2018-0613) and Gangneung Asan Hospital (2018-05-018). Informed consent was not required given that this study focused on retrospective review of medical records.
: Not applicable.
: All authors declare no potential competing interests regarding this manuscript.