Epidemiology of pneumoconioses at a silo in Teheran. A study of 465 men exposed to silo dust.
D000328:Adult; D000382:Agricultural Workers' Diseases / Q000453:epidemiology*; D004781:Environmental Exposure; D006801:Humans; D007492:Iran; D008297:Male; D008875:Middle Aged; D011009:Pneumoconiosis / Q000000981:diagnostic imaging / Q000453:epidemiology*; D011859:Radiography; D013997:Time Factors