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Authors
Shin, Wonkyo
Park, Sang-Yoon
Kang, Sokbom
Lim, Myong Cheol
Seo, Sang-Soo https://orcid.org/0000-0003-2381-0965
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Article History
Received: 1 May 2020
Accepted: 3 August 2020
First Online: 22 August 2020
Ethics approval and consent to participate
: This retrospective study was approved by the institutional review board of our institution (IRB No. NCC2019–0272).
: Not applicable.
: The authors declare that they have no competing interests.
