Junghye Choi, Chunhui Suh, Jong-Tae Lee, Segyeong Lee, Chae-Kwan Lee, Gyeong-Jin Lee, Taekjoong Kim, Byung-Chul Son, Jeong-Ho Kim, Kunhyung Kim, Dae Hwan Kim, Ji Young Ryu

Ann Occup Environ Med.2017;29(1):23.  Published online 2017 June 24     DOI: http://dx.doi.org/10.1186/s40557-017-0182-z