1. Division of Cardiology, Emory University School of Medicine, Atlanta, GA
2. Department of Biostatistics and Bioinformatics, Emory Rollins School of Public Health, Atlanta, GA
3. Cardiovascular Research Institute, Morehouse School of Medicine, Atlanta, GA
4. Division of Epidemiology, Emory Rollins School of Public Health, Atlanta, GA
5. National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD