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Authors
Noh, Sung Hyun
Park, Jeong Yoon
Kuh, Sung Uk
Chin, Dong Kyu
Kim, Keun Su
Cho, Yong Eun
Kim, Kyung Hyun
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Article History
Received: 15 July 2019
Accepted: 22 June 2020
First Online: 6 July 2020
Ethics approval and consent to participate
: This study had been approved by the Internal review boeard (IRB) of the Gangnam Severance Hospital.
: Not applicable.
: The authors declare that they have no financial or other conflicts of interest in relation to this research and its publication.
