1. Urology Unit, Azienda Ospedaliero-Universitaria delle Marche, Università Politecnica delle Marche, Ancona, Italy.
2. Department of Urology, University Hospital Southampton NHS Trust, Southampton, United Kingdom.
3. S.H. Ho Urology Centre, Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
4. Department of Urology, Ospedale L. Bonomo, Andria, Italy.
5. Department of Urology and Organ Transplantation, University of Foggia, Foggia, Italy.
6. Department of Urology, Ng Teng Fong General Hospital, Singapore, Singapore.