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Authors
Hur, Joonho
Jeong, Boryeong
Shin, Ji Hoon https://orcid.org/0000-0002-2367-1347
Bae, Jae-Ik
Lee, Sang Hwan
Kim, Soon Bae
Won Chang, Jai
Kim, Jin Young
Kim, Ji Eun
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Article History
Received: 7 November 2020
Accepted: 12 January 2021
First Online: 13 April 2021
Compliance with Ethical Standards
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: 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, Mint Hospital and H Plus Yangji Hospital and the need for informed consent was waived.
