1. Brooke Army Medical Center Brain Injury Rehabilitation Service, JBSA Fort Sam Houston, San Antonio, Texas, USA
2. Traumatic Brain Injury Center of Excellence, Silver Spring, Maryland, USA
3. Brooke Army Medical Center, JBSA, Texas, USA
4. General Dynamics Information Technology, Falls Church, Virginia, USA
5. Neck Pain and Whiplash Research Unit, School of Health and Rehabilitation Services, University of Queensland, Brisbane, Queensland, Australia
6. Department of Psychology, South Texas Veterans Health Care System & The University of Texas at San Antonio, San Antonio, Texas, USA