Article History
Received: 18 March 2020
Accepted: 27 May 2020
First Online: 6 June 2020
Compliance with ethical standards
:
: All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest, or non-financial interest in the subject matter or materials discussed in this manuscript.
: Informed consent was obtained from all individual participants included in this study.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Institutional Ethics Review Board of Seoul National University Bundang Hospital (IRB No. B-1912/582-101) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: This article does not contain any studies with animals performed by any of the authors.