1. From the Department of Medicine F & J. Recanati Autonomic Dysfunction Center, Tel Aviv “Sourasky” Medical Center and Sackler Faculty of Medicine, University of Tel Aviv, Israel (G.J.)
2. US Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville (L.D.)
3. Division of Clinical Pharmacology, Department of Medicine, Autonomic Dysfunction Center (K.S., S.R.R., D.R., I.B., A.D.), Vanderbilt University School of Medicine, Nashville, TN
4. Department of Medicine, Tokyo Women's Medical University, Medical Center East, Japan (K.S.)
5. Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (R.J.B.).
6. Department of Neurology (D.R.), Vanderbilt University School of Medicine, Nashville, TN
7. Department of Biomedical Engineering (A.D.), Vanderbilt University School of Medicine, Nashville, TN