Reduplications of the gastro-intestinal tract.
D000013:Congenital Abnormalities / Q000601:surgery; D004064:Digestive System / Q000196:embryology; D004065:Digestive System Abnormalities; D013505:Digestive System Surgical Procedures; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male