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Hong, Yun-Chul; Leem, Jong-Han; Lee, Kwan-Hee; Park, Dong-Hyun; Jang, Jae-Yeon; Kim, Sun-Tae; Ha, Eun-Hee
Int Arch Occup Environ Health. 2005 Mar;78(2):132-8. Epub 2005 Mar 5.
Choi, Ji-Ho; Xu, Qing-Song; Park, So-Yeon; Kim, Jin-Hee; Hwang, Seung-Sik; Lee, Kwan-Hee; Lee, Hyun-Jung; Hong, Yun-Chul
J Epidemiol Community Health 2007;61:314-8