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Authors
Jang, Bich Na
Lee, Hyeon Ji
Joo, Jae Hong
Park, Eun-Cheol
Jang, Sung-In https://orcid.org/0000-0002-0760-2878
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Funding
Funding for this research was provided by:
Yonsei University College of Medicine (6-2018-0174, 6-2017-0157)
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Article History
Received: 20 February 2020
Accepted: 27 April 2020
First Online: 14 May 2020
Ethics approval and consent to participate
: The CHS survey data are openly published, so ethical approval was not applicable for this study. This study did not collect inform consent from the participants, because their information was fully anonymized prior to analysis.
: Not applicable.
: The authors declare that they have no competing interests.
