1. UOC of Urology, Department of Surgery, University of Tor Vergata, Policlinico Casilino, Rome, Italy.
2. Division of Urology, Clinique Saint-Augustin, Bordeaux, France.
3. UOC of Urology, Department of Surgery, University of Tor Vergata, Policlinico Tor Vergata, Rome, Italy.
4. Department of Urology “U.Bracci,” Policlinico Umberto I, University of Rome La Sapienza, Rome, Italy.