Article History
Received: 6 December 2020
Revised: 9 January 2021
Accepted: 2 February 2021
First Online: 12 February 2021
Declarations
:
: The study was approved by the Institutional Review Boards (IRB) of Seoul National University Hospital (IRB No. H-1009-062-332). The need for informed consent was waived by the IRBs.
: None.