1. King's College Hospital; London UK
2. Department of Clinical Medicine; Aarhus University and Aarhus University Hospital; Aarhus Denmark
3. Moinhos de Vento Hospital; Porto Alegre Brazil
4. Depertment of Urology; Medical Faculty Mannheim of the Ruprecht-Karls-University of Heidelberg; Heidelberg Germany
5. Department of Urology; Maastricht University Medical Centre; Maastricht The Netherlands
6. School of Medicine; Marmara University; İstanbul Turkey
7. Hospital Universitario de Canarias; Universidad de La Laguna; Canary Islands Spain