1. Helen F. Graham Cancer Center & Research Institute, Newark, Delaware
2. Alliance Statistics and Data Center, Mayo Clinic, Rochester, Minnesota
3. Virginia Cancer Institute, Richmond
4. VCU Massey Cancer Center, Richmond, Virginia5Now with Yale University, New Haven, Connecticut
5. Alliance Statistics and Data Center, Mayo Clinic, Rochester, Minnesota6Now with Regeneron Pharmaceuticals, Basking Ridge, New Jersey
6. Gundersen Health System, La Crosse, Wisconsin8Now with Mayo Clinic, Rochester, Minnesota
7. Helen F. Graham Cancer Center & Research Institute, Newark, Delaware9Now with American Society of Clinical Oncology, Alexandria, Virginia
8. Roswell Park Cancer Institute, Buffalo, New York
9. Decatur Memorial Hospital, Decatur, Illinois
10. New Hampshire Oncology Hematology PA, Hooksett
11. Division of Cancer Prevention, National Cancer Institute, Bethesda, Maryland
12. Mayo Clinic, Rochester, Minnesota
13. Icahn School of Medicine at Mount Sinai, New York, New York