1. NYU School of Medicine, Brain Research Laboratories, Department of Psychiatry, New York, New York.
2. Washington University School of Medicine, Department of Emergency Medicine, St. Louis, Missouri.
3. University of Rochester School of Medicine and Dentistry, Department of Emergency Medicine, Rochester, New York.
4. Department of Clinical Research, Johns Hopkins University, Baltimore, Maryland.
5. Division of Brain Injury Outcomes, Johns Hopkins University School of Medicine, Baltimore, Maryland.