1. Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA;
2. Division of Hematology, University of Washington, Seattle;
3. Department of Laboratory Medicine, Hematopathology, University of Washington, Seattle;
4. Division of Molecular Carcinogenesis, Netherlands Cancer Institute, Amsterdam, The Netherlands; and
5. Novartis Institutes for BioMedical Research, Novartis Pharmaceuticals Corporation, Cambridge, MA