[Changes in diagnostic criteria for pneumoconiosis in China].
E-mail: wchen@mails.tjmu.edu.cn.
Yong-heng
YH
Gao
Jie
J
Wu
Jing-cai
JC
Xing
Hai
H
Zhang
Wei-hong
WH
Chen
D002681:China; D006801:Humans; D011009:Pneumoconiosis / Q000175:diagnosis*