1. Department of Urology SS Annunziata‐Hospital Taranto Italy
2. Department of Urology Villa Stuart Private Hospital Rome Italy
3. Department of Urology and Urological Oncology Hannover Medical School Hannover Germany
4. Department of Urology, Careggi Hospital, San Luca Nuovo University of Florence Florence Italy
5. Department of Urology, Pediatric Urology and Urological Oncology St. Antonius‐Hospital Gronau Gronau Germany