Citation

Niu YM, Ye Q. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35(7): 526-528.

Copyright

(Copyright © 2017, Tianjin shi lao dong wei sheng yan jiu suo)

DOI

unavailable

PMID

29081106

Abstract

[Abstract unavailable]

Language: zh