1. Center for Reconstructive Urethral Surgery, Arezzo, Italy
2. Sezione di Anatomia Patologica, Ospedale Santa Maria alla Gruccia, Montervarchi, Italy
3. Department of Urology, Istituto Nazionale Tumori “Regina Margerita”, Rome, Italy
4. Department of Urology, Tor Vergata University, Rome, Italy
5. Department of Urology, San Donato Hospital, Arezzo, Italy
6. Department of Urology, Istituto Fiorentino di Cura e Assistenza S. P. A., Gruppo GIOMI, Florence, Italy