1. Department of Urology and Renal Transplantation; Martin-Luther-University; Halle/Saale Germany
2. Glickman Urological and Kidney Institute; Cleveland Clinic; Cleveland OH USA
3. Department of Urology; Yonsei University College of Medicine; Seoul South Korea
4. Division of Urology; University of California San Diego; La Jolla CA USA
5. Urology Unit; S. Pio da Pietrelcina Hospital; Vasto Italy
6. The Arthur Smith Institute for Urology; Hofstra North Shore-LIJ School of Medicine; New Hyde Park NY USA
7. Depatment of Urology and Urological Oncology; Division of Endourology and Laparoscopy; Hannover Medical School; Hannover Germany
8. Department of Urology; University of Patras; School of Medicine; Patras Greece
9. Department of Urology; Changhai Hospital; Shanghai China
10. Department of Clinical Pharmacology and Epidemiology; Consorzio Mario Negri Sud; Santa Maria Imbaro Italy
11. Department of Urology; LKH; Hall i. Tirol Austria
12. Department of Urology; University of Leipzig; Leipzig Germany