1. Department of Urology; Asklepios Hospital Harburg; Hamburg Germany
2. Department of Urology; Diakoniekrankenhaus Rotenburg; Rotenburg Germany
3. Department of Urology; MHH Medical School of Hannover; Hannover Germany
4. Department of Urology; Klinikum Sindelfingen-Böblingen; Sindelfingen Germany
5. Department of Urology; Cottolengo Hospital; Torino Italy
6. Department of Urology; AMC University of Amsterdam; Amsterdam The Netherlands
7. Second Department of Urology; Sismanoglio Hospital, Athens Medical School; Athens Greece
8. Department of Urology; Rangueil University Hospital; Toulouse France
9. Department of Urology; Paracelsius Medical University; Salzburg Austria
10. Department of Urology; LKH Hall; Hall in Tirol Austria
11. Department of Urology; Fundacio Puigvert; Autonoma University of Barcelona; Barcelona Spain
12. Department of Urology; University Hospital Basel; Basel Switzerland
13. Department of Urology; Helios Klinik Müllheim; Müllheim Germany
14. Department of Urology; Saint John Emergency Clinical Hospital; Bucharest Romania
15. Department of Urology; University of Patras; Patras Greece
16. Department of Urology; CHUV; Lausanne Switzerland
17. Department of Urology; Kreiskliniken Reutlingen; Reutlingen Germany
18. Department of Urology; Centre of Oncology; Kielce Poland
19. Department of Endourology; Municipal Clinical Hospital #57 of Moscow; Moscow Russian Federation
20. Department of Urology; Careggi Hospital, University of Florence; Florence Italy
21. Department of Urology; Medical University of Vienna; Vienna Austria
22. Department of Urology; University of Tübingen; Tübingen Germany
23. Department of Urology; New Estense S. Agostino Hospital Ausl Modena; Modena Italy
24. Department of Urology; Klinikum Heilbronn; Heilbronn Germany