1. Virginia Mason Medical Center, Seattle, WA
2. Washington University School of Medicine, St Louis, MO
3. University Hospital Heinrich-Heine, University of Düsseldorf, Düsseldorf, Germany
4. Melvin and Bren Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN
5. Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA
6. Princess Margaret Hospital, University of Toronto, Toronto, Ontario, Canada
7. Dana-Farber Cancer Institute, Brigham and Women's Hospital, Boston, MA
8. Bart's Cancer Institute, St Bartholomew's Hospital, Queen Mary University of London, London, United Kingdom
9. British Columbia Cancer Agency–Vancouver Cancer Centre, University of British Columbia, Vancouver, British Columbia, Canada
10. Institute Gustave Roussy, University of Paris Sud, Paris, France
11. Knight Cancer Institute, Oregon Health and Science University, Portland, OR
12. Royal Prince Alfred Hospital, Sydney Cancer Centre, University of Sydney, Sydney, New South Wales, Australia
13. Peter MacCallum Cancer Center, University of Melbourne, Melbourne, Victoria, Australia
14. Kantonsspital Graubuenden, Chur, Switzerland
15. University Medical Centre Eppendorf, Hamburg University, Hamburg, Germany