1. Division of Urology, “Ospedale Civile” Voghera, Italy
2. Department of Preventive, Occupational and Community Medicine, University of Pavia and Toxicology Unit, “Fondazione Salvatore Maugeri” IRCCS, Pavia Medical Centre, Pavia, Italy
3. Department of Internal Medicine and Therapeutics, Division of Pharmacology and Toxicology, University of Pavia, Pavia, Italy