1. Departement of Gastroenterology Hopital Habib Thameur Tunis Tunisia
2. Faculty of Medicine of Tunis University of Tunis El MAnar Tunis Tunisia
3. Departement of Pathology Hopital Habib Thameur Tunis Tunisia
4. Departement of Surgery Hopital Habib Thameur Tunis Tunisia
5. Departement of Radiology Hopital Habib Thameur Tunis Tunisia