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Authors
Kang, Dae Hwan
Ryu, Dae Gon
Choi, Cheol Woong https://orcid.org/0000-0001-8867-3039
Kim, Hyung Wook
Park, Su Bum
Kim, Su Jin
Nam, Hyeong Seok
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Article History
Received: 6 February 2019
Accepted: 8 December 2019
First Online: 16 December 2019
Ethics approval and consent to participate
: The study was approved by the ethics committee of the Pusan National University Yangsan Hospital Institutional Review Board (Institutional Review Board no. 05–2019-001). And written informed consent was obtained from all patients. There were no conflicts of interest or sponsors in this study.
: Not applicable.
: The authors declare that they have no competing interests.
