1. Shepherd Center, Crawford Research Institute and Division of Physical Therapy, Emory University, Atlanta, Georgia.
2. Department of Physical Therapy, Faculty of Rehabilitation Medicine and Neuroscience and Mental Health Institute, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada.
3. School of Health and Rehabilitation Sciences, The Ohio State University, Columbus, Ohio.
4. Department of Biomedical Engineering, Neuroscience and Mental Health Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.