Funding for this research was provided by:
Seoul National Hospital (02-2013-077)
Received: 24 June 2020
Accepted: 28 October 2020
First Online: 11 November 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board (IRB) of Seoul National University Bundang Hospital (SNUBH), South Korea (IRB No. B-1402-240-006). Written informed consent was obtained from all participants before enrolment.
: Not applicable.
: The authors declare no conflict of interest.