Apparent onset of coal-workers' pneumoconiosis after leaving the mines.
D000328:Adult; D001991:Bronchitis / Q000209:etiology*; D003032:Coal Mining; D006801:Humans; D008297:Male; D009784:Occupational Diseases / Q000175:diagnosis*; D011009:Pneumoconiosis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011859:Radiography