1. Department of Psychosocial and Community Health, University of Washington, Seattle2Cancer Prevention Program, Fred Hutchinson Cancer Research Center, Seattle3Department of Epidemiology, University of Washington, Seattle
2. Cancer Prevention Program, Fred Hutchinson Cancer Research Center, Seattle
3. Cancer Prevention Program, Fred Hutchinson Cancer Research Center, Seattle3Department of Epidemiology, University of Washington, Seattle
4. SWOG Statistical Center, Fred Hutchinson Cancer Research Center, Seattle
5. Cancer Therapy and Research Center, University of Texas Health Science Center at San Antonio, San Antonio
6. University of Colorado Denver School of Medicine, Aurora, Colorado