1. Defense and Veterans Brain Injury Center, James A. Haley VA Hospital, Tampa, Florida, USA.
2. Mental Health and Behavioral Sciences and Defense and Veterans Brain Injury Center, James A. Haley VA Hospital, Tampa, Florida, USA.
3. Morsani College of Medicine, Sleep and Pulmonary Division, University of South Florida, Tampa, Florida, USA.
4. Center for Healthcare Organization and Implementation Research, VA Boston Healthcare System, Boston, Massachusetts, USA.
5. Boston University School of Public Health, Boston, Massachusetts, USA.
6. National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, Maryland, USA.
7. Department of Neurology, Uniformed Services University, Bethesda, Maryland, USA.
8. Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University, Richmond, Virginia, USA.
9. Department of Physical Medicine and Rehabilitation, Baylor College of Medicine, Houston, Texas, USA.
10. Michael E. DeBakey VA Medical Center, Houston, Texas, USA.
11. United States Special Operations Command, Tampa, Florida, USA.
12. Department of Psychology and Psychiatry and Behavioral Neurosciences, Sleep and Pulmonary Division, University of South Florida, Tampa, Florida, USA.
13. George E. Wahlen VA Salt Lake City Healthcare System, Salt Lake City, Utah, USA.
14. Department of Neurology, TBI and Concussion Center, University of Utah, Salt Lake City, Utah, USA.
15. Department of Internal Medicine, Sleep and Pulmonary Division, University of South Florida, Tampa, Florida, USA.