Funding for this research was provided by:
Seoul National University Hospital (03-2017-0360)
Received: 23 September 2020
Accepted: 15 January 2021
First Online: 26 January 2021
Ethics approval and consent to participate
: The study was approved by the Institutional Ethics Review Board of Seoul National University Hospital (No. 1705–030-852). All subjects who participated in the study supplied informed written consent. The informed consent form and study-related samples were collected under the permission of above committee (Institutional Review Board, SNUH, Seoul, South Korea). Data used in this study was anonymized before its use.
: Not applicable.
: The authors declare no competing interests.