1. Roswell Park Cancer Institute, Buffalo, New York
2. Cairo University, Cairo, Egypt
3. University of the Saarland, Homburg, Germany
4. Rijnstate Hospital, Arnhem, the Netherlands
5. Arthur Smith Institute for Urology, New York, New York
6. Beth Israel Deaconess Medical Center, Boston, Massachusetts
7. City of Hope and Beckman Research Institute, Duarte, California
8. Fundació Puigvert, Barcelona, Spain
9. Guy's Hospital and King's College, London School of Medicine, London, United Kingdom
10. Henry Ford Health System, Detroit, Michigan
11. Karolinska University Hospital, Stockholm, Sweden
12. Luigi Sacco University Hospital, Milan, Italy
13. Onze-Lieve-Vrouw Ziekenhuis, Aalast, Belgium
14. Yonsei University Health System Severance Hospital, Seoul, Korea
15. Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina
16. Division of Surgery and Interventional Science, Department of Urology, University College London, London, United Kingdom
17. Michigan Urological Clinic, Grand Rapids, Michigan
18. Yildirim Beyazit University, School of Medicine, Ankara Ataturk Training and Research Hospital, Ankara, Turkey