1. Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine, University of California, Los Angeles
2. Fred Hutchinson Cancer Research Center, Seattle, Washington
3. Department of Epidemiology, University of Alabama at Birmingham, Birmingham
4. Department of Physical Therapy, University of Illinois, Chicago
5. Department of Medicine, Stanford University School of Medicine, Stanford, California
6. Department of Obstetrics and Gynecology, University of Florida College of Medicine, Jacksonville
7. Mercy Health Osteoporosis and Bone Health Services, Cincinnati, Ohio
8. Department of Epidemiology and Environmental Health, University at Buffalo, The State University of New York, Buffalo
9. Division of General Internal Medicine, Department of Medicine, The University of Tennessee Health Science Center College of Medicine, Memphis
10. Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis
11. Division of Rheumatology, Medical College of Georgia at Augusta University, Augusta
12. Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, The Ohio State University, Columbus
13. Division of Epidemiology & Community Health, Department of Medicine, University of Minnesota and Veterans Affairs Health Care System, Minneapolis