1. Department of Medical-Surgical Specialties and Public Health, Urology Section, University of Perugia, “Santa Maria della Misericordia” Hospital, Sant'Andrea delle Fratte, Perugia, Italy.
2. Department of Internal Medicine, University of Perugia, “Santa Maria della Misericordia” Hospital, Sant'Andrea delle Fratte, Perugia, Italy.
3. Department of Urology, Memorial Sloan-Kettering Cancer Center, New York, New York.