1. The University of Chicago Medicine and Biological Sciences, Chicago, IL
2. Washington University School of Medicine in St. Louis, St. Louis, MO
3. University of Michigan Comprehensive Cancer Center, Ann Arbor, MI
4. Southern Illinois University School of Medicine, Springfield, IL
5. St. John's Mercy Medical Center, St. Louis, MO
6. Mayo Clinic, Rochester, MN
7. University of Illinois Hospital and Health Sciences System, Chicago, IL
8. University of California, San Diego, San Diego, CA