Kim, Ju Hwan
Lee, Choong-Hyun
Kim, Hyung-Gun
Kim, Hak Rim
Funding for this research was provided by:
National Research Foundation of Korea (NRF-2017R1D1A1B03029527)
Research fund of Dankook University in 2017
Article History
Received: 16 May 2018
Accepted: 12 December 2018
First Online: 4 February 2019
Competing Interests
: The authors declare no competing interests.