1. Division of Population Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA
2. Division of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester MN
3. Division of Research, Kaiser Permanente Northern California, Oakland, CA
4. Departments of Epidemiology, Biostatistics and Medicine, University of California, San Francisco, CA
5. Department of Health Research and Policy, Stanford University School of Medicine, Palo Alto, CA
6. Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC