1. Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital of Dallas, Dallas;
2. Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas;
3. Institute for Neuromusculoskeletal Research, Ohio University;
4. Departments of Biomedical Sciences and of Specialty Medicine, Ohio University College of Osteopathic Medicine, Athens, Ohio;
5. Department of Integrative Physiology, The University of Iowa, Iowa City;
6. Program in Free Radical and Radiation Biology, Department of Radiation Oncology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa