1. Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA;
2. Molecular Sciences/Oncology Biomarker, Amgen, Inc., Seattle, WA;
3. Oncology Research, Amgen, Inc., Thousand Oaks, CA;
4. ARM BiTE Technology, Amgen Research GmbH, Munich, Germany;
5. Medical Sciences/Early Development, Amgen, Inc., Rockville, MD; and
6. Department of Medicine, Division of Hematology and
7. Department of Epidemiology, University of Washington, Seattle, WA