1. Cancer Prevention Research Program, University of Washington, Department of Epidemiology, Seattle, WA and Cancer Prevention Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA
2. Cancer Prevention Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA
3. Cancer Prevention Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA and Department of Epidemiology, University of Washington, Seattle, WA
4. Bastyr University, Kenmore, WA
5. Cancer Prevention Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA and Department of Health Services, University of Washington, Seattle, WA
6. Bone and Mineral Unit, Oregon Health & Science University, Portland, OR