Yoo, Jeongin http://orcid.org/0000-0002-3267-2544
Lee, Jeong Min http://orcid.org/0000-0003-0561-8777
Yoon, Jeong Hee http://orcid.org/0000-0002-9925-9973
Joo, Ijin http://orcid.org/0000-0002-1341-4072
Lee, Eun Sun http://orcid.org/0000-0003-0780-7985
Jeon, Sun Kyung http://orcid.org/0000-0002-8991-3986
Jang, Siwon http://orcid.org/0000-0002-6980-431X
Article History
Received: 7 September 2020
Revised: 25 November 2020
Accepted: 27 November 2020
First Online: 13 March 2021
Compliance with ethical standards
:
: The authors have no relevant financial or non-financial interests to disclose.
: This study was approved by Institutional Review Board of Seoul National University Hospital and in accordance with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Written informed consent was waived by Institutional Review Board of Seoul National University Hospital due to retrospective design of the study.