1. Department of Medicine University of Pittsburgh Pittsburgh Pennsylvania
2. Center for Outcomes Research University of Massachusetts Medical School Worcester Massachusetts
3. Department of Rheumatology University of Verona Ospedale Verona Valeggio Italy
4. Division of Geriatric Medicine Leuven University Center for Metabolic Bone Diseases Katholieke Universiteit Leuven Leuven Belgium
5. Fred Hutchinson Cancer Research Center Seattle Washington
6. Regional Bone Center Helen Hayes Hospital West Haverstraw New York
7. Department of Endocrinology VU University Medical Center Amsterdam the Netherlands
8. Department of Internal Medicine III Alfried Krupp Krankenhaus Essen Germany
9. Department of Rheumatology David Geffen School of Medicine University of California at Los Angeles Los Angeles California
10. Columbia University Medical Center New York New York
11. Bone Health and Osteoporosis Center University of Cincinnati Cincinnati Ohio