1. Department ‘’Materno Infantile e Scienze Urologiche’’, Policlinico Umberto I, Sapienza University of Rome, 00161 Rome, Italy
2. Department of Urology, ICOT Latina, University Sapienza, 04100 Latina, Italy
3. Sant’Eugenio Hospital, 00144 Rome, Italy
4. San Carlo di Nancy Hospital, 00165 Rome, Italy
5. Vannini Hospital, 00177 Rome, Italy
6. San Camillo Hospital, 00152 Rome, Italy
7. Department of Urology, Ospedale Sant’Andrea, University Sapienza, 00189 Rome, Italy