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Authors
Moon, Seung Hwan https://orcid.org/0000-0003-4302-1920
Cho, Young Seok https://orcid.org/0000-0003-1396-4952
Choi, Joon Young https://orcid.org/0000-0003-1060-0096
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Article History
Received: 27 May 2021
Revised: 28 June 2021
Accepted: 3 August 2021
First Online: 31 August 2021
Declarations
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: Seung Hwan Moon, Young Seok Cho, and Joon Young Choi declare no conflict of interest.
: This study procedure followed the medical research protocols and ethics guidelines defined by the World Medical Association’s Declaration of Helsinki throughout the study.
: Informed consent was not necessary, because the study design was a review based on previous studies.
