1. Department of Medical, Oral and Biotechnological Sciences, G. d'Annunzio University of Chieti, Chieti, Italy
2. Laboratory of Biostatistics, G. d'Annunzio University of Chieti, Chieti, Italy
3. Urology Unit, SS. Annunziata Hospital, Chieti, Italy
4. Department of Urology, Azienda Sanitaria Locale Abruzzo, Chieti, Italy
5. Department of Surgery, Oncology, and Gastroenterology-Urology Clinic, University of Padua, Padua, Italy
6. Division of Hematology, Oncology and Palliative Care, Department of Internal Medicine, Virginia Commonwealth University, Richmond, Virginia
7. Division of Urology, Virginia Commonwealth University Health, Richmond, Virginia
8. Department of Urology, Villa Stuart Hospital, Rome, Italy