Affiliation: | 1. Wilmer Eye Institute, Johns Hopkins School of Medicine, Baltimore, MD;2. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD;3. Division of Comprehensive Oral Health/Periodontology, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC;4. Department of Family Medicine, University of California, San Diego, CA;5. Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC;6. Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN |