1. Department of Health and Rehabilitation Sciences, Temple University, Philadelphia, Pennsylvania, USA
2. Department of Rehabilitation Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
3. Department of Psychology, University of South Carolina, Columbia, South Carolina, USA
4. Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University, Richmond, Virginia, USA
5. Research Department, Sheltering Arms Institute, Richmond, Virginia, USA
6. Department of Nutrition, Metabolic and Rehabilitation Sciences, University of Texas Medical Branch-Galveston, Galveston, Texas, USA