A quantitative study of fibrous dust in the lungs of city dwellers.
D000328:Adult; D000368:Aged; D002648:Child; D004391:Dust / Q000032:analysis*; D005260:Female; D006330:Heart Defects, Congenital / Q000473:pathology; D006801:Humans; D008168:Lung / Q000032:analysis* / Q000033:anatomy & histology / Q000473:pathology; D008297:Male; D008722:Methods; D008875:Middle Aged; D010316:Particle Size; D010414:Pennsylvania; D013194:Staining and Labeling; D014505:Urban Population
D004391:Dust