Are supra-inion depressions evidence of prophylactic trephination?
D000883:Anthropology; D002140:California; D006666:History of Medicine; D006801:Humans; D007198:Indians, North American; D007199:Indians, South American; D010164:Paleopathology; D010568:Peru; D012886:Skull / Q000033:anatomy & histology*; D014207:Trephining / Q000266:history*