1. University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania
2. University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
3. Weill Cornell Medical Center, New York, New York
4. Oregon Health and Science University, Portland5Now with Pacific University, Forest Grove, Oregon, and the Oregon Health and Science University, Portland
5. University of Washington, Seattle
6. Neuropsychiatric Research Institute, Fargo, North Dakota
7. Brody School of Medicine, East Carolina University, Greenville, North Carolina
8. Oregon Health and Science University, Portland
9. National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland