Koh, Yong-Gon
Nam, Ji-Hoon
Chung, Hyun-Seok
Kim, Ho-Joong
Chun, Heoung-Jae
Kang, Kyoung-Tak http://orcid.org/0000-0002-1036-193X
Article History
Received: 6 August 2018
Accepted: 23 October 2018
First Online: 29 October 2018
Compliance with ethical standards
:
: The authors declare no conflict of interest.
: Approval was not required, as neither human participants nor animals were involved in this study.