1. Department of Emergency Medicine, Stanford University, Stanford, California, USA.
2. Cohen Veterans Bioscience, New York, New York, USA.
3. Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.
4. Neurosurgery Research Laboratory, Zablocki Veterans Affairs Medical Center, Milwaukee, Wisconsin, USA.
5. Pediatrics, Critical Care Medicine, Children's National Hospital, Washington DC, USA.
6. Department of Neurosurgery, Stanford University School of Medicine, Palo Alto, California, USA.
7. Traumatic Brain Injury Center of Excellence, Defense Health Agency, Silver Spring, Maryland, USA.
8. Virginia Commonwealth University School of Medicine, and Hunter Holmes McGuire Veterans Affairs Medical Center, Richmond, Virginia, USA.