1. Program in Cancer Prevention, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Department of Biostatistics, School of Public Health and Community Medicine, University of Washington, Seattle, Washington.
2. Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington.
3. Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center and Division of Endocrinology and Metabolism, School of Medicine, University of Washington, Seattle, Washington.
4. Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center and Department of Epidemiology, School of Public Health and Community Medicine, University of Washington, Seattle, Washington.