1. PhD Program, Faculty of Medicine, School of Urology, Polytechnic University of the Marche Region, Ancona, Italy.
2. Urology Unit, IRCCS INRCA, Ancona, Italy.
3. Unit of Geriatric Pharmacoepidemiology and Biostatistics, IRCCS INRCA, Ancona, Italy.
4. Department of Urology, Ospedale di Circolo e Fondazione Macchi, Varese, Italy.
5. Department of Urology, Policlinico San Martino Hospital, University of Genova, Genova, Italy.
6. Department of Urology, University of Trieste, Cattinara Hospital, Trieste, Italy.
7. Department of Urology, Hospital and University of Parma, Parma, Italy.