1. Urological Research Institute, Division of Experimental Oncology, Istituto di Ricovero e Cura a Carattere Scientifico and Unit of Urology, Vita-Salute San Raffaele University, San Raffaele Scientific Institute, Milan, Italy
2. Department of Urology, University of Piemonte Orientale, Novara, Italy
3. Department of Urology, Università degli studi e Spedali Civili di Brescia, Brescia, Italy
4. Department of Urology, Clinica Urologica I, Azienda Ospedaliera Universitaria Careggi, Università degli studi di Firenze, Firenze, Italy
5. Department of Urology, Azienda Ospedaliero-Universitaria San Luigi Gonzaga, Università degli studi di Torino, Orbassano, Italy