Han, Hyuk-Soo
Yu, Cheol Hwan
Shin, Nari
Won, Sungho
Lee, Myung Chul http://orcid.org/0000-0002-8150-1573
Article History
Received: 11 October 2018
Accepted: 14 January 2019
First Online: 20 February 2019
Compliance with ethical standards
:
: The authors certify that they have no commercial associations that might pose a conflict of interest in connection with this article.
: The study protocol was approved by the Institutional Review Board (Protocol No. H-1808-071-965).