1. Department of Medicine, Johns Hopkins University, Baltimore, MD
2. Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, MD
3. Department of Psychiatry and Behavioral Sciences, University of California San Francisco, San Francisco, CA
4. Division of General Medicine and Clinical Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC
5. Department of Medicine, University of Chicago, Chicago, IL
6. Departments of Epidemiology and Behavioral and Community Health Sciences, University of Pittsburgh, Pittsburgh, PA
7. Department of Environmental Health Sciences, Columbia University, New York, NY
8. National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD
9. The Brown School and The School of Medicine, Washington University in St. Louis, St. Louis, MO