Kwon, Oh Chan
Lee, Jung Sun
Kim, Yong-Gil
Lee, Chang-Keun
Yoo, Bin
Hong, Seokchan http://orcid.org/0000-0001-8722-3124
Article History
Received: 10 January 2018
Revised: 18 January 2018
Accepted: 23 January 2018
First Online: 30 January 2018
Compliance with ethical standards
: The Institutional Review Board of the Asan Medical Center, Seoul, South Korea, approved this study (IRB No.: 2017-0623).
: None.