1. Department of Urology, Rush University, Chicago, IL 60612, USA
2. Department of Urology, Sant’Andrea Hospital, Sapienza University, 00189 Rome, Italy
3. Department of Urology, Azienda Ospedaliera Universitaria Integrata Verona, University of Verona, 37126 Verona, Italy
4. Urology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
5. Department of Maternal Infant and Urologic Sciences, Policlinico Umberto I Hospital, “Sapienza” University of Rome, 00161 Rome, Italy
6. Division of Urology, European Institute of Oncology (IEO), IRCCS, 20141 Milan, Italy
7. Department of Urology, Changhai Hospital, Naval Medical University, Shanghai 200433, China