1. Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas. Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital and University of Texas Southwestern Medical Center , Dallas, Texas , USA
2. Department of Physiology and Anatomy, University of North Texas Health Science Center , Fort Worth, Texas , USA
3. Department of Applied Clinical Research, School of Health Professions, University of Texas Southwestern Medical Center , Dallas, Texas , USA
4. Office of Science, Medicine, and Health, American Heart Association , Dallas, Texas , USA