1. Dana-Farber Cancer Institute, Boston, MA
2. David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA
3. University of California, San Francisco, San Francisco, CA
4. The Angeles Clinic and Research Institute, Los Angeles, CA
5. Institut Gustave Roussy, Paris, France
6. Westmead Hospital and Melanoma Institute Australia, University of Sydney, Westmead, Australia
7. The University of Texas MD Anderson Cancer Center, Houston, TX
8. Abramson Cancer Center of the University of Pennsylvania, Philadelphia, PA
9. Princess Margaret Cancer Centre, Toronto, ON, Canada
10. University of Sydney, Sydney, Australia
11. Moffitt Cancer Center, Comprehensive Melanoma Research Center, Tampa, FL
12. Mayo Clinic, Department of Medical Oncology, Rochester, MN
13. Merck, West Point, PA
14. Merck & Co., West Point, PA
15. Merck & Co., North Wales, PA
16. Merck & Co, Inc, Rahway, NJ
17. Merck/MRL, Kenilworth, NJ
18. Merck & Co, Inc, North Wales, PA
19. Memorial Sloan Kettering Cancer Center, New York, NY