1. Roswell Park Comprehensive Cancer Center, Buffalo, New York
2. Arthur Smith Institute for Urology, New Hyde Park, New York
3. Beth Israel Deaconess Medical Center, Boston, Massachusetts
4. Yonsei Medical Health Care System, Seoul, South Korea
5. City of Hope National Cancer Center, Duarte, California
6. Fundació Puigvert, Barcelona, Spain
7. Guy's Hospital, London, United Kingdom
8. Henry Ford Health System, Detroit, Michigan
9. Hôpital Pitié-Salpétrière, Paris, France
10. Koç University Hospital, Istanbul, Turkey
11. Karolinska Institute, Solna, Sweden
12. Luigi Sacco (San Raffaele), Milan, Italy
13. Metro Health Hospital, Wyoming, Michigan
14. Orsi Academy/Onze-Lieve-Vrouwziekenhuis, Aalst, Flanders
15. Rijnstate Hospital, Arnhem, The Netherlands
16. Universitätsklinikum des Saarlandes, Homburg, Germany
17. Wake Forest Medical Center, Winston-Salem, North Carolina
18. Washington University, St. Louis, Missouri
19. Cleveland Clinic, Cleveland, Ohio