Chronic bronchitis and dust exposure in British coalminers.
D000328:Adult; D000367:Age Factors; D001991:Bronchitis / Q000000981:diagnostic imaging / Q000453:epidemiology*; D002908:Chronic Disease; D003032:Coal Mining; D004391:Dust; D006801:Humans; D008297:Male; D008875:Middle Aged; D011009:Pneumoconiosis / Q000453:epidemiology; D011859:Radiography; D012907:Smoking; D011795:Surveys and Questionnaires; D006113:United Kingdom
D004391:Dust