1. Unit of Urology, Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples “Federico II”, 80131 Naples, Italy
2. Urology Department, Hull Teaching Hospitals NHS Trust, Hull HU3 2JZ, UK
3. Radiology Department, East and North Hertfordshire NHS Trust, Stevenage SG1 4AB, UK
4. Department of Advanced Biomedical Sciences, University of Naples “Federico II”, 80131 Naples, Italy
5. Urology Unit, Policlinico Tor Vergata Foundation, 00133 Rome, Italy
6. Department of Surgical Sciences, University of Rome Tor Vergata, 00133 Rome, Italy
7. Unit of Urology, Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy