1. Faculty of Medicine Tunis, Department of Urology, La Rabta Hospital, University Tunis Manar, Tunis, Tunisia
2. Department of Urology, University of Joseph Ki-Zerbo, Ouagadougou, Burkina Faso
3. Faculty of Medicine Tunis, Department of Pathology, La Rabta Hospital, University Tunis Manar, Tunis, Tunisia