1. Duplications of the rectum;MacLeod;Dis Colon Rectum,1970
2. Anorectal malformations with sacral bony abnormalities;Nour;Arch Dis Child,1989
3. Carcinoma arising in a rectal duplication (enterocystoma);Weitzel;Ann Surg,1963
4. A rare case of adenocarcinoma arising within a duplication cyst of the rectum: curative excision with 9-year follow-up;Parvaiz;Coll Surg Engl,2005
5. Surgical treatment of duplication of the alimentary tract: enterogenous cysts, enteric cysts, or ileum duplex;Ladd;Surg Gynecol Obstet,1940