Article History
Received: 7 May 2020
Revised: 7 July 2020
Accepted: 7 July 2020
First Online: 16 July 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The Institutional Review Board of Seoul National University Bundang Hospital (IRB No.: SNUBH B-2004/607-102)
: The Institutional Review Board of Seoul National University Bundang Hospital waived the requirement of informed consent. Patient records and information were anonymized prior to access.