1. Department of Urology, Péterfy Sándor Utcai Hospital‑Clinic and Trauma Centre, Budapest 1076, Hungary
2. Department of Urology, Ibn Rochd University Hospital, Casablanca 50169, Morocco
3. Department of Urology, Free University of Brussels, 1050 Brussels, Belgium
4. Department of Urology, University Hospital of Pointe à Pitre, Les Abymes 97159, Guadeloupe, France