Citation

Chen YQ, Zhai XL, Zhu XL. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34(7): 538-540.

Copyright

(Copyright © 2016, Tianjin shi lao dong wei sheng yan jiu suo)

DOI

unavailable

PMID

27682494

Abstract

[Abstract unavailable]

Language: zh