[Signs for early detection of chronic dust-induced bronchitis among coal miners].
D000328:Adult; D001991:Bronchitis / Q000175:diagnosis*; D003031:Coal / Q000009:adverse effects*; D003032:Coal Mining; D004391:Dust / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D009784:Occupational Diseases / Q000175:diagnosis*
D003031:Coal; D004391:Dust
Priznaki rannego raspoznavaniia khronicheskogo pylevogo bronkhita u shakhterov-ugol'shchikov.