1. Research Institute; California Pacific Medical Center; San Francisco California
2. Department of Psychiatry; University of California at San Diego; La Jolla California
3. Department of Medicine; University of California at San Diego; La Jolla California
4. Department of Epidemiology; Graduate School of Public Health; University of Pittsburgh; Pittsburgh Pennsylvania
5. Department of Medicine; Brigham and Women's Hospital and Beth Israel Deaconess Medical Center; Harvard Medical School; Boston Massachusetts
6. Bone and Mineral Unit; Oregon Health & Science University; Portland Oregon
7. Center for Chronic Disease Outcomes Research; Veterans Affairs Medical Center; Minneapolis Minnesota
8. Department of Medicine; University of Minnesota; Minneapolis Minnesota
9. Division of Epidemiology and Community Health; University of Minnesota; Minneapolis Minnesota