1. Laboratory of Colorectal Cancer Research UR03ES04, Science University Tunis, Tunis, Tunisia
2. Faculty of Sciences UTM, University Tunis El Manar, Tunis, Tunisia
3. Department of Epidemiology and Preventive Medicine, Medicine University Tunis, Tunis, Tunisia
4. Department of Pathology and Cytology, Mongi Slim Hospital, La Marsa, Tunis, Tunisia
5. Faculty of Medicine of Tunis, University Tunis El Manar, Tunis, Tunisia