Citation

Qin Z, Qin W, Nong K. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2014; 32(6): 450.

Copyright

(Copyright © 2014, Tianjin shi lao dong wei sheng yan jiu suo)

DOI

unavailable

PMID

25169231

Abstract

[Abstract unavailable]

Language: zh