Funding for this research was provided by:
New Faculty Startup Fund from Seoul National University
Article History
Received: 13 December 2020
Accepted: 13 July 2021
First Online: 31 July 2021
Declarations
:
: This study was approved by the institutional research board (IRB) of the Seoul National University Hospital (SNUH, 2010–080-1164) and was performed in accordance with the ethical standards of the Declaration of Helsinki. Due to the retrospective nature of the study, the need for informed consent was waived.
: Not applicable for this study.
: The authors declare that they have no competing interest.