[Pathological studies of the rectum and the levator ani muscle in atresia ani].
D001003:Anal Canal / Q000473:pathology*; D001006:Anus, Imperforate / Q000473:pathology*; D002648:Child; D006801:Humans; D008297:Male; D009132:Muscles / Q000473:pathology; D012007:Rectum / Q000473:pathology*