1. Departments of Preventive Medicine and Epidemiology and Medicine, Division of Nephrology and Hypertension, Loyola University Medical Center, Maywood, Illinois;
2. Department of Biostatistical Sciences, Wake Forest University School of Medicine, Winston-Salem, North Carolina;
3. Department of Epidemiology and Prevention, Wake Forest University School of Medicine, Winston-Salem, North Carolina;
4. Department of Medicine, Northwest Lipid Metabolism and Diabetes Research Laboratories, Seattle, Washington;
5. Department of Medicine, Division of Metabolism and Endocrinology, University of Washington and VA Puget Sound Health Care System, Seattle, Washington;
6. Pennington Biomedical Research Center, the Louisiana State University System, Baton Rouge, Louisiana;
7. Departments of Medicine and Epidemiology, Johns Hopkins University, Baltimore, Maryland.