1. Department of Rehabilitation Medicine, UT Health Science Center at San Antonio, San Antonio, TX, USA
2. Spinal cord injury center, South Texas Veterans Health Care System, San Antonio, TX, USA
3. VA RR&D National Center for the Medical Consequences of Spinal Cord Injury, James J Peters VA Medical Center, Bronx, NY, USA
4. New York Institute of Technology, Department of Physical Therapy, School of Health Professions, Old Westbury, NY, USA
5. Faculty of Health and Life Sciences, Coventry University, Coventry, UK