1. Center for Chronic Lymphocytic Leukemia, Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA;
2. University of Chicago Comprehensive Cancer Center, Chicago, IL;
3. Wilmot Cancer Institute, University of Rochester, Rochester, NY;
4. Georgetown Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC;
5. Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH;
6. Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY;
7. John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ;
8. Penn State Cancer Institute, Penn State University, Hershey, PA;
9. University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA;
10. Tufts University Medical Center, Boston, MA; and
11. Celgene Corporation, Summit, NJ