1. University of Washington/Fred Hutchinson Cancer Research Center, Seattle, WA
2. Johns Hopkins Kimmel Cancer Center and Bloomberg–Kimmel Institute for Cancer Immunotherapy, Baltimore, MD
3. Emory University, Atlanta, GA
4. Moffitt Cancer Center, Tampa, FL
5. Mount Sinai Medical Center, New York, NY
6. University of California San Francisco, San Francisco, CA
7. Yale University, New Haven, CT
8. Stanford University, Stanford, CA
9. Louisiana State University, New Orleans, LA
10. University of Pittsburgh, Pittsburgh, PA
11. Duke University Medical Center, Durham, NC
12. Ohio State University Comprehensive Cancer Center, Columbus, OH
13. City of Hope, Duarte, CA
14. Fred Hutchinson Cancer Research Center/Cancer Immunotherapy Trials Network, Seattle, WA
15. University of Washington, Seattle, WA
16. Axio Research, Seattle, WA
17. Merck Research Laboratories, Kenilworth, NJ
18. National Cancer Institute, Cancer Therapy Evaluation Program, Bethesda, MD