Citation

Yu ZG, Liu Z, Sun Z. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2012; 30(11): 828.

Copyright

(Copyright © 2012, Tianjin shi lao dong wei sheng yan jiu suo)

DOI

unavailable

PMID

23257032

Abstract

[Abstract unavailable]

Language: zh