Citation

Wu D, Hu YH. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39(1): 59-60.

Copyright

(Copyright © 2021, Tianjin shi lao dong wei sheng yan jiu suo)

DOI

10.3760/cma.j.cn121094-20190814-00338

PMID

unavailable

Abstract

[The publisher has not provided an abstract for this article.]

Language: zh