1. Johns Hopkins University, School of Medicine, Baltimore, MD;
2. Dana Farber Cancer Institute, Harvard School of Public Health, Boston, MA;
3. Department of Pathology, Vanderbilt University Medical Center, Nashville, TN;
4. Cancer Sciences Institute of Singapore, National University of Singapore, Singapore;
5. British Columbia Cancer Agency, University of British Columbia, Center for Lymphoid Cancer, Vancouver, British Columbia, Canada;
6. Northwestern University, Feinberg School of Medicine, Robert H. Lurie Comprehensive Cancer Center, Chicago, IL;
7. University of Rochester James P. Wilmot Cancer Center, Rochester, NY;
8. Washington University Siteman Cancer Center, St. Louis, MO;
9. Loyola University Medical Center, Maywood, IL;
10. Georgetown University Center Hospital, Washington, DC;
11. Stanford University, Stanford, CA;
12. Division of Hematology and Medical Oncology, Arizona Cancer Center, Tucson, AZ;
13. University of Wisconsin, Madison, WI; and
14. Genentech, Inc, South San Francisco, CA