[Difference in individual noise exposure level between day shift and night shift workers in iron ore crushing area].
Hui-juan
HJ
Li
Dong-liang
DL
Cai
Cai-xia
CX
Zhang
D006801:Humans; D008906:Mining; D009623:Noise, Occupational / Q000706:statistics & numerical data*; D016273:Occupational Exposure / Q000706:statistics & numerical data*; D014940:Work Schedule Tolerance