Kim, Beom-Jun
Kwak, Mi Kyung
Lee, Seung Hun
Koh, Jung-Min
Funding for this research was provided by:
Ministry of Health and Welfare (HI14C2258)
Article History
Received: 11 June 2018
Accepted: 27 September 2018
First Online: 3 October 2018
Compliance with Ethical Standards
:
: Beom‑Jun Kim, Mi Kyung Kwak, Seung Hun Lee and Jung‑Min Koh have no conflict of interest.
: The study complies with the principles outlined in the Declaration of Helsinki. The study was approved by the Ethics Committee of the Korea Centers for Disease Control and Prevention (approval number: 2013-12EXP-03-5C). All participants in the study provided written informed consent.