1. Memorial Sloan Kettering Cancer Center, New York, NY
2. Alliance Statistics and Data Center, Mayo Clinic, Rochester, MN
3. Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY
4. Department of Colorectal Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
5. SWOG, Portland, OR
6. Brigham and Women's Hospital, Boston, MA
7. IHA Hematology Oncology Consult, Ypsilanti, MI
8. Mayo Clinic, Rochester, MN
9. ECOG, Philadelphia, PA
10. NRG Oncology and The University of Florida Health Cancer Center, Gainesville, FL
11. Canadian Cancer Trials Group, Kingston, ON, Canada
12. Alliance for Clinical Trials in Oncology, Chicago, IL
13. Dana-Farber Cancer Institute, Boston, MA
14. Alliance Statistics and Data Management Center, Mayo Clinic, Rochester, MN
15. UNC Lineberger Comprehensive Cancer Center, Chapel Hill, NC
16. MD Anderson Cancer Center, Houston, TX