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Authors
Song, Hyun Jin
Park, Susan
Kwon, Jin-Won
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Funding
Funding for this research was provided by:
Sungkyunkwan University (Postdoctoral Research Program 2017)
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Article History
Accepted: 11 April 2018
First Online: 18 April 2018
Compliance with ethical standards
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: The authors declare that they have no conflict of interest.
: The research ethics committee of Korea Centers for Disease Control and Prevention (KCDC) approved the study protocol including study design, interview questionnaires, and informed consent.
: Informed consent was obtained from all participants.
