Bum-Joon Lee, Shin-Goo Park, Kyoung-Bok Min, Jin-Young Min, Sang-Hee Hwang, Jong-Han Leem, Hwan-Cheol Kim, Sung-Hwan Jeon, Yong-Seok Heo, So-Hyun Moon

Ann Occup Environ Med.2014;26(1):34.  Published online 2014 November 4     DOI: http://dx.doi.org/10.1186/s40557-014-0034-z