1. Neuropsychology Assessment Services, Walter Reed National Military Medical Center, Bethesda, MD, USA;
2. Defense and Veterans Brain Injury Center, Walter Reed National Military Medical Center, Silver Spring, MD, USA;
3. National Intrepid Center of Excellence, Walter Reed National Military Medical Center, Bethesda, MD, USA;
4. Uniformed Services University of the Health Sciences, Bethesda, MD, USA;
5. University of British Columbia, Vancouver, British Columbia, Canada