[1] Mem Sloan Kettering Canc Ctr, New York, NY 10021 USA
[2] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[3] Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA 90095 USA
[4] Univ Nebraska Med Ctr, Sect Oncol & Hematol, Omaha, NE USA
[5] Northwestern Univ, Robert H Lurie Comprehens Canc Ctr, Feinberg Sch Med, Chicago, IL 60611 USA
[6] Mayo Clin, Dept Internal Med, Div Hematol, Rochester, MN USA
[7] BC Canc Agcy, Ctr Lymphoid Canc, Dept Pathol, Vancouver, BC, Canada
[8] Plexxikon Inc, Berkeley, CA USA