[Effect of removal from a dusty environment on a further development of chronic bronchitis in cement workers].
D001991:Bronchitis / Q000209:etiology*; D029481:Bronchitis, Chronic; D004388:Dura Mater / Q000293:injuries*; D004391:Dust; D004777:Environment; D006801:Humans; D009784:Occupational Diseases / Q000209:etiology*
D004391:Dust
BRONCHITIS/etiology; DURA MATER/wounds and injuries; OCCUPATIONAL DISEASES/etiology