1. Surgery Department ‘A’, Ibn Sina Hospital, Medical School, Mohammed V University in Rabat, Morocco
2. Medical School, Mohammed the First University, Oujda, Morocco
3. Medical Centre of Clinical Trials and Epidemiological Study and Biostatistical, Clinical Research and Epidemiological Laboratory, Medical School, Mohammed V University in Rabat, Morocco
4. Abulcasis International University of Health Sciences, Abulcasis Medical School, Rabat, Morocco