1. Department of Physical Medicine & Rehabilitation, Virginia Commonwealth University, Richmond, VA, USA
2. Hunter Holmes McGuire VA Medical Center, Richmond, VA, USA
3. RTI International, RTP, Durham, NC, USA
4. Michael E. DeBakey VA Medical Center, Houston, TX, USA
5. Baylor College of Medicine, Houston, TX, USA
6. Salisbury VA Medical Center, Salisbury, NC, USA
7. Polytrauma Rehabilitation Center, South Texas Veterans Health Care System, San Antonio, TX, USA
8. Department of Rehabilitation Medicine, UT Health San Antonio, TX, USA