1. Kidney Cancer Center, Dana Farber Cancer Institute, Boston, Massachusetts
2. British Columbia Cancer Agency, Vancouver, British Columbia, Canada
3. Cross Cancer Institute, Edmonton, Alberta, Canada
4. Princess Margaret Hospital, Toronto, Ontario, Canada
5. University of Calgary, Calgary, Alberta, Canada
6. Beth Israel Deaconess Medical Center, Boston, Massachusetts
7. Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio
8. Tom Baker Cancer Center, Calgary, Alberta, Canada