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Authors
Nam, Kwangwoo
Park, Sang Hyoung https://orcid.org/0000-0002-5366-5749
Oh, Jun Ho
Lee, Ho-Su
Noh, Soomin
Park, Jae Cheol
Kim, Jin Yong
Oh, Eun Hye
Kim, Jeongseok
Ham, Nam Seok
Hwang, Sung Wook
Yang, Dong-Hoon
Ye, Byong Duk
Byeon, Jeong-Sik
Myung, Seung-Jae
Yang, Suk-Kyun
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Article History
Received: 30 August 2020
Accepted: 28 December 2020
First Online: 6 January 2021
Ethics approval and consent to participate
: The study protocol was reviewed and approved by the Institutional Review Board (IRB) of the Asan Medical Center (IRB no. 2019–0664). The requirement of written informed consent was waived owing to the retrospective nature of this study.
: Not applicable. The requirement for informed consent from patients was waived by the IRB.
: The authors declare that they have no competing interests.
