1. Department of Urology, Circolo & Fondazione Macchi Hospital–ASST Sette Laghi , Varese 28001 , Italy
2. Vita-Salute San Raffaele University , Milan 20151 , Italy
3. Division of Experimental Oncology , Unit of Urology, , Milan 20151 , Italy
4. URI, IRCCS Ospedale San Raffaele , Unit of Urology, , Milan 20151 , Italy
5. Urology Section , Department of Surgery, , Catania 95100 , Italy
6. University of Catania , Department of Surgery, , Catania 95100 , Italy
7. Department of Urology, Martha-Maria Hospital Nuremberg , Nuremberg 90402 , Germany
8. Department of Urology, University of Florence , Careggi Hospital, Florence 50100 , Italy
9. Division of Urology , Department of Surgical Sciences, Molinette Hospital, , Turin 10024 , Italy
10. University of Turin , Department of Surgical Sciences, Molinette Hospital, , Turin 10024 , Italy
11. Department of Urology, Hospital Universitario Puerta de Hierro-Majadahonda , Madrid 28001 , Spain
12. Urology Department , Hospital Universitario La Paz, 28046 Madrid , Spain