1 University of L'Aquila, Department of Life, Health and Environmental Sciences, School of Specialization in Urology, Piazzale Salvatore Tommasi 1, 67100, Coppito, AQ, Italy.
2 Ospedale Civile di Teramo G. Mazzini, U.O.C. Urologia, piazza Italia 1, 67100, Teramo, Italy.