1. Veterans Administration Tennessee Valley Healthcare System, Vanderbilt University School of Medicine, Nashville, TN
2. Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University School of Medicine, Nashville, TN
3. Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, GA
4. Trinity College of Art and Science, Duke University, Durham, NC
5. Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN
6. Division of Nephrology and Hypertension, Vanderbilt University School of Medicine, Nashville, TN
7. The Center for Preventive Cardiology at the Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR