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Authors
Kim, Yong-Won
Kang, Dong-Hun
Son, Wonsoo
Hwang, Yang-Ha
Kim, Yong-Sun
Shin, Jong Wook
Lim, Jeong-Wook
Koh, Hyeon-Song
Kwon, Hyon-Jo https://orcid.org/0000-0003-1077-2461
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Article History
Received: 13 October 2020
Accepted: 22 February 2021
First Online: 15 March 2021
Declarations
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: This study was implemented in accordance with the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. This study was approved by the Institutional Review Board (IRB) of each hospital (Chungnam National University Hospital IRB: CNUH 2020-04-147; Kyungpook National University Hospital IRB: KNUH 2020–04–053-001).
: For this type of study, formal consent is not required. This article does not contain any studies with human participants performed by any of the authors.
: The authors declare no competing interests.
