1. Helen F. Graham Cancer Center & Research Institute, Newark, DE
2. Alliance Statistics and Data Center, Mayo Clinic, Rochester, MN
3. Virginia Cancer Institute, Richmond, VA
4. Yale University, New Haven, CT
5. Roswell Park Cancer Institute, Buffalo, NY
6. New Hampshire Onc-Hem PA, Hooksett, NH
7. Mayo Clinic, Rochester, MN
8. Mount Sinai School of Medicine, New York, NY