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Authors
Yoo, Tae-Kyung
Park, Sang Hyun
Do Han, Kyung
Chae, Byung Joo
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Article History
Received: 4 December 2020
Accepted: 9 June 2021
First Online: 26 June 2021
Declarations
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: 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. This study was approved by the NHIS inquiry commission, and all data were provided after de-identification. This study was also approved by the Institutional Review Board of Seoul St. Mary’s Hospital (IRB no. KC18ZESI0157) and the need to obtain informed consent was waived.
: All data were provided after de-identification. The Institutional Review Board of Seoul St. Mary’s Hospital waived for informed consent.
: This study was performed using the database from the National Health Insurance System (NHIS-2020-1-096); the results do not necessarily represent the opinion of the National Health Insurance Corporation.The authors declare no competing interests.
