1. University of California San Francisco, San Francisco, CA
2. NRG Oncology Statistics and Data Management Center, Philadelphia, PA
3. Moffitt Cancer Center, Tampa, FL
4. University Health Network-Princess Margaret Hospital, Toronto, ON, Canada
5. M D Anderson Cancer Center, Houston, TX
6. Cleveland Clinic, Cleveland, OH
7. Boston Medical Center, Boston, MA
8. Stanford Cancer Institute Palo Alto, Stanford, CA
9. Otago Medical School, Dunedin, New Zealand
10. University Hospitals Cleveland, Cleveland, OH
11. The Ohio State University Comprehensive Cancer Center, Columbus, OH
12. UC San Diego Moores Cancer Center, La Jolla, CA
13. Washington University School of Medicine, Saint Louis, MO
14. Sutter Cancer Research Consortium, Sacramento, CA
15. Tom Baker Cancer Centre, Calgary, AB, Canada
16. University of Kansas Cancer Center, Kansas City, KS
17. Stanford University, Stanford, CA