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Authors
Choi, Seulggie
Oh, Juhwan
Park, Sang Min https://orcid.org/0000-0002-7498-4829
Hwang, Seo Eun
Lee, Hwa-Young
Kim, Kyuwoong
Shobugawa, Yugo
Kawachi, Ichiro
Lee, Jong-Koo
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Funding
Funding for this research was provided by:
Korea Centers for Disease Control and Prevention (2018P330400)
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Article History
Received: 14 June 2020
Accepted: 19 November 2020
First Online: 25 November 2020
Ethics approval and consent to participate
: This study was approved by the Seoul National University Hospital Institutional Review Board (IRB number: E-1806-076-951). The requirement for informed consent was waived as the NHIS-NSC database was anonymized according to strict confidentiality guidelines prior to distribution.
: Not applicable.
: None of the authors have any conflicts to report.
