Hrdlicka revisited (external auditory canal exostoses).
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004424:Ear Canal; D005096:Exostoses / Q000453:epidemiology*; D006801:Humans; D007198:Indians, North American; D007223:Infant; D007231:Infant, Newborn; D008875:Middle Aged; D009658:North Dakota; D010164:Paleopathology; D013023:South Dakota