Lee, Tae-Yul
Kim, Ki-Bum
Choi, Dong-il
Article History
Received: 9 April 2018
Accepted: 14 August 2018
First Online: 23 August 2018
Compliance with Ethical Standards
:
: The authors have no conflicts of interest to disclose.
: The study protocol was approved by the institutional review board (IRB) of our institution (Approval No.: KUGH 15091-001). This study was performed in accordance with the Declaration of Helsinki.