Bok, Eugene
Chung, Young Cheul
Kim, Ki-Suk
Baik, Hyung Hwan
Shin, Won-Ho
Jin, Byung Kwan
Funding for this research was provided by:
National Research Foundation of Korea (NRF-2016R1A2B4010692)
Article History
Received: 8 September 2017
Revised: 18 January 2018
Accepted: 9 April 2018
First Online: 3 July 2018
Competing interests
: The authors declare that they have no conflict of interest.