Article History
Received: 1 September 2020
Accepted: 21 March 2021
First Online: 31 March 2021
Declarations
:
: This study was approved by the SMG-SNU Boramae Medical Center Institutional Review Board (IRB approval number: 20180518 / 20–2017-33 / 062). Written informed consent was obtained from all the participants.
: Not applicable.
: All the authers declare that they have no competing interests.