[1] Libin Cardiovascular Institute,Department of Cardiac Sciences
[2] University of Calgary,Division of Clinical Pharmacology, Department of Medicine, Autonomic Dysfunction Center
[3] Vanderbilt University Medical Center,Department of Neural and Behavioral Sciences
[4] Pennsylvania State University College of Medicine,Department of Neurology, NorthShore University Health System, Pritzker School of Medicine
[5] University of Chicago,Department of Biomedical Physiology and Kinesiology
[6] Simon Fraser University,Department of Nutrition and Exercise Physiology
[7] University of Missouri,Division of Cardiology, Department of Pediatrics
[8] University of Texas Health Sciences Center at Houston,Department of Neurology, Autonomic Dysfunction Center
[9] Vanderbilt University Medical Center,Cardiology Division
[10] Wellstar Healthcare System,Department of Neurology
[11] UT Southwestern Medical Center,undefined