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Authors
Chen, Chengshi
Kim, Jong-Woo
Shin, Ji Hoon https://orcid.org/0000-0002-2367-1347
Hong, Bumsik
Li, Hai-Liang
Kang, Chae-Hoon
Cho, Young-Jong
Chu, Hee Ho
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Article History
Received: 29 April 2020
Accepted: 26 July 2020
First Online: 4 August 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study was approved by the institutional review board at each participating hospital.
: For this type of study formal consent is not required. This study has obtained IRB approval from Asan Medical Center and Gangneung Asan Hospital and the need for informed consent was waived.
: For this type of study consent for publication is not required.
