1. Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA
2. Division of Endocrinology, Baltimore Veterans Affairs Medical Center, Baltimore, MD
3. Division of Endocrinology, Diabetes, and Nutrition, University of Maryland School of Medicine, Baltimore, MD
4. Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA