1. Division of Urology, Department of Oncology, San Luigi Gonzaga Hospital, University of Turin, Turin, Italy.
2. Department of Chemistry, University of Turin, Turin, Italy.
3. Centro Regionale Antidoping “A. Bertinaria” of Orbassano (Turin), Turin, Italy.
4. Department of Surgery, Candiolo Cancer Institute, FPO-IRCCS, Turin, Italy.
5. Division of Urology, Department of Surgery, SS Annunziata Hospital, Cosenza, Italy.