, Jong-Tae Lee1, Segyeong Lee2, Chae-Kwan Lee1, Gyeong-Jin Lee1, Taekjoong Kim3, Byung-Chul Son1, Jeong-Ho Kim1, Kunhyung Kim1, Dae Hwan Kim4, Ji Young Ryu4 1Department of Occupational and Environmental Medicine & Institute of Environmental and Occupational Medicine, Busan Paik Hospital, Inje University, Busan Paik hospital, 75, Bokji-ro, Busanjin-gu, Busan, South Korea JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/