1. Center for Reconstructive Urethral Surgery, Centro Chirurgico Toscano, Arezzo, Italy
2. Department of Experimental Medicine and Surgery, University of Tor Vergata, Rome, Italy
3. Unit of Urology, Ospedale San Donato, ASL 8, Arezzo, Italy
4. Division of Oncology, Unit of Urology, URI, IRCCS Ospedale San Raffaele, Università Vita-Salute San Raffaele, Milan, Italy