1. Kornbluth A, Sachar DB, Salomon P. Crohn's disease In: Feldman M, Scharschmidt BF, Sleisenger MH, Klein S, editors. Sleisenger & Fordtran's Gastrointestinal and Liver Disease. 6th ed. W. B. Saunders Company; 1998;1708-1734.
2. Case 10-1996
3. Recurrent appendicitis
4. Lally KP, Cox CS, Andrassy RJ. Appendicitis In: Townsend CM, Beauchamp RD, Evers BM, Mattox KL, editors. Sabiston Textbook of Surgery. 16th ed. W. B. Saunders Company; 2001;918-926.
5. Leardi S, Delmonaco S, Ventura T, Chiominto A, De Rubeis G, Simi M. Recurrent abdominal pain and "chronic appendicitis". Minerva Chir 2000;55:39-44.