1. 1Division of Diabetes Translation, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA
2. 2Department of Internal Medicine, University of Illinois College of Medicine, Peoria, IL
3. 3National Opinion Research Center at the University of Chicago, Atlanta, GA
4. 4Department of Ophthalmology and Visual Sciences and Institute for Social Research, University of Michigan, Ann Arbor, MI