Cha, Eun Shil; Lee, Yun Keun; Moon, Eun Kyeong; Kim, Yong Bae; Lee, Yong-Jin; Jeong, Woo Chul; Cho, Eun Young; Lee, Ik Jin; Hur, Jongil; Ha, Mina, et al.
ArticleIssue Date2012CitationOccupational and Environmental Medicine, v.69, no.6, pp 398 - 403PublisherBMJ Publishing Group