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Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi = Zhonghua Laodong Weisheng Zhiyebing Zazhi = Chinese Journal of Industrial Hygiene and Occupational Diseases|August 31, 2012
[Bone mineral density changes in coal workers' pneumoconiosis]Hai-xue Li, Peng-yong Zhai, Jin-feng Yan
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi = Zhonghua Laodong Weisheng Zhiyebing Zazhi = Chinese Journal of Industrial Hygiene and Occupational Diseases|August 31, 2012
[Bone mineral density changes in coal workers' pneumoconiosis in Two and Triple stages with increasing ages]Hai-xue Li, Peng-yong Zhai, Jin-feng Yan
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