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Authors
Ko, Eunok https://orcid.org/0000-0003-4516-7501
Kim, Yeonbae
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Article History
Received: 2 February 2020
Accepted: 9 May 2020
First Online: 20 May 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: Not applicable.
: The questionnaire and methodology for this study was approved by the SNU Institutional Review Board of the Seoul National University (IRB No. 1907/002-011).
: All study participants provided informed consent.
