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Authors
Son, Yoon Hee
Oh, Sarah Soyeon
Jang, Sung-In https://orcid.org/0000-0001-7170-0221
Park, Eun-Cheol
Park, So-Hee
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Article History
Received: 24 April 2020
Accepted: 20 November 2020
First Online: 2 December 2020
Ethics approval and consent to participate
: This study was approved by Institutional Review Board, Yonsei University Health System (IRB number: Y-2019-002) as an exempted study. Ethical approval was not required as KNHNES provides anonymous, secondary data that is publicly available for scientific use.
: Not applicable.
: Not applicable.
