1. Division of General Internal Medicine and Health Services Research; Department of Medicine; David Geffen School of Medicine at the University of California; Los Angeles Los Angeles CA USA
2. Women's Health Initiative; Fred Hutchinson Cancer Research Center; Seattle WA USA
3. Family and Preventive Medicine; University of California; San Diego, La Jolla CA USA
4. Endocrine, Diabetes, and Hypertension Division; Department of Medicine; Brigham and Women's Hospital; Boston MA USA
5. Department of Epidemiology; University of Pittsburgh; Pittsburgh PA USA
6. Department of Medicine; UC Davis Medical Center; Sacramento CA USA
7. Division of Endocrinology, Diabetes, and Metabolism; Department of Medicine; The Ohio State University; Columbus OH USA
8. Departments of Medicine and Epidemiology & Biostatistics; University of California; San Francisco, San Francisco CA USA