[Repeated studies of coal miners during 5 years with special consideration of chronic bronchitis and pulmonary emphysema].
D000328:Adult; D001991:Bronchitis / Q000453:epidemiology*; D003032:Coal Mining; D006801:Humans; D008875:Middle Aged; D009784:Occupational Diseases / Q000453:epidemiology; D011656:Pulmonary Emphysema / Q000453:epidemiology*
Opakovaná vysetrení u uhlokopů bĕhem pĕti let se zamĕrením na vleklý zánĕt prudusek a rozedmu plic.