Choi, Jong Hwan
Chung, Woo Jin
Bae, Si Hyun
Song, Do Seon
Song, Myeong Jun
Kim, Young Seok
Yim, Hyung Joon
Jung, Young Kul
Suh, Sang Jun
Park, Jun Yong
Kim, Do Young
Kim, Seung Up
Cho, Sung Bum
Article History
Received: 29 January 2018
Accepted: 2 July 2018
First Online: 7 July 2018
Compliance with ethical standards
:
: The authors have no conflicts of interest to declare.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.