1. Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri;
2. School of Sport and Exercise Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
3. Department of Internal Medicine, University of Missouri, Columbia, Missouri;
4. Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, Nebraska; and
5. Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri;