, Sae-mi Jung1
, Il-ho Lee1
, Dae Hwan Kim2
, Eui Hyek Choi2
, In-ah Kim3
, Yong-kyu Kim4
, Kyung-joon Lee4
, Yang Won Kang5
, Ho-gil Kim5
, Young-ki Kim1,6
1Department of Occupational and Environmental Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea. JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/