1. Hospital of the University of Pennsylvania, Abramson Cancer Center, West Pavilion, Philadelphia, PA
2. Virginia Commonwealth University Health, Massey Cancer Center, Richmond, VA
3. University of Arizona Cancer Center, Tucson, AZ
4. Mayo Clinic Hospital—Phoenix, Phoenix, AZ
5. Karmanos Cancer Institute, Detroit, MI
6. Mayo Clinic—Rochester, Rochester, MI
7. City of Hope Comprehensive Cancer Center, Duarte, CA
8. Leiden University, Leiden, the Netherlands
9. Moffitt Cancer Center, Tampa, FL
10. Hospital of the University of Pennsylvania, Abramson Cancer Center, Philadelphia, PA
11. Washington University—St Louis, St Louis, MO
12. University of California—Irvine, Orange, CA