Citation

Xu CS, Liu WG. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2008; 26(12): 745-746.

Copyright

(Copyright © 2008, Tianjin shi lao dong wei sheng yan jiu suo)

DOI

unavailable

PMID

19257938

Abstract

[Abstract unavailable]

Language: zh