1. Department of Urology; Urological Research Institute; San Raffaele Scientific Institute; Vita-Salute University; Milan Italy
2. Doctorate Research Program; Magna Graecia University of Catanzaro; Catanzaro Italy
3. Department of Urology; Mayo Clinic Rochester; Rochester MN USA
4. Department of Urology; University of Padua; Padua Italy
5. Department of Urology; Papa Giovanni XXIII Hospital; Bergamo Italy