Chung, Kyu Sung
Ha, Jeong Ku
Ra, Ho Jong
Lee, Han Sung
Lee, Dhong Won
Park, Jung Ho
Kim, Du Han
Kim, Jin Goo
Article History
Received: 2 August 2017
Accepted: 12 June 2018
First Online: 13 July 2018
Compliance with ethical standards
:
: All authors have no potential conflict of interest.
: Ethical approval was obtained from the institutional review board of our hospital district (IRB no. 2013-06-027-002).