1. Memorial-Sloan Kettering Cancer Center, New York, New York
2. Dana Farber Cancer Institute, Boston, Massachusetts
3. Taussig Cancer Center, Cleveland Clinic, Cleveland, Ohio
4. Centre Léon-Bérard, Lyon, France
5. Institut Gustave Roussy, Paris, France
6. Cambridge Biomedical Research Centre, Cambridge, United Kingdom
7. Georgetown-Lombardi Comprehensive Cancer Center, Washington, D.C.