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Authors
Shin, Yoonkyeom
Kang, Ji-Man
Lee, Junwon
Lee, Christopher Seungkyu
Lee, Sung Chul
Ahn, Jong Gyun https://orcid.org/0000-0001-5748-0015
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Article History
Received: 20 August 2020
Accepted: 4 March 2021
First Online: 1 April 2021
Declarations
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: As this study was retrospective in nature, the requirement for informed consent was waived. The institutional review board (no. 4–2020-0142) of the Yonsei University Health System approved this research.
: Not applicable.
: The authors declare no conflicts of interest.
