[Duplication of the alimentary tract (author's transl)].
D002648:Child; D002675:Child, Preschool; D004065:Digestive System Abnormalities; D013505:Digestive System Surgical Procedures; D004386:Duodenum / Q000002:abnormalities; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D013270:Stomach / Q000002:abnormalities