Citation

Shi HP, Shan BR. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2011; 29(5): 398-399.

Copyright

(Copyright © 2011, Tianjin shi lao dong wei sheng yan jiu suo)

DOI

unavailable

PMID

21972549

Abstract

[Abstract unavailable]

Language: zh