1. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
2. Deep South Center on Effectiveness at Birmingham VA Medical Center and Department of Preventive Medicine, University of Alabama at Birmingham, Birmingham, Alabama
3. Centers for Disease Control and Prevention, Division of Diabetes Translation, Atlanta, Georgia
4. Division of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California
5. Division of Research, Kaiser Permanente, Oakland, California