Chang, Hyung-Joo
Kim, Hyun Jung
Rhyu, Im Joo
Lee, Young-Mee
Uhm, Chang-Sub https://orcid.org/0000-0003-4462-8513
Funding for this research was provided by:
Korea University (None)
Article History
Received: 30 July 2018
Accepted: 22 October 2018
First Online: 12 November 2018
Ethics approval and consent to participate
: The Institutional Review Board of Korea University reviewed and approved this study. Reference number 1040548-KU-IRB-16-35-A-1. Written consent to participate in this study was obtained from each participant.
: Not applicable.
: The authors declare that they have no competing interests.
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