[The incidence of pneumoconiosis in welders feature].
Rui-Zhi
RZ
Wang
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D016273:Occupational Exposure; D011009:Pneumoconiosis / Q000175:diagnosis / Q000453:epidemiology*; D014896:Welding