1. Department of Human and Paediatric Pathology “Gaetano Barresi”, Urologic Section, University of Messina, Messina, Italy
2. Urology Unit, Academic Medical Centre “Santa Maria della Misericordia”, Udine, Italy
3. Department of Surgical, Oncologic, and Gastrointestinal Disease, Urologic Unit, University of Padua, Padua, Italy