1. Department of Neurosurgery, Baylor College of Medicine, Houston, Texas.
2. Department of Neurosurgery, Philadelphia, Pennsylvania.
3. Department of Neurosurgery, North Shore University Hospital, Manhasset, New York.
4. Department of Emergency Medicine, Drexel University College of Medicine, and Hahnemann Hospital, Philadelphia, Pennsylvania.
5. Department of Neurosurgery, Lokmanya Tilak Municipal General Hospital, Sion, Mumbai, India.
6. Departments of Neurology, Neurosurgery and Anesthesia/Critical Medicine, Johns Hopkins University, Baltimore, Maryland.
7. Neurosurgery Clinical Research Division, Philadelphia, Pennsylvania.
8. The University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania.
9. Department of Neurosurgery & Mayfield Clinic, University of Cincinnati College of Medicine, Cincinnati, Ohio.
10. Clinical Research Group, Drexel University College of Medicine, and Hahnemann Hospital, Philadelphia, Pennsylvania.
11. Clinical Reading Center, Johns Hopkins University, Division of Brain Injury Outcomes, Baltimore, Maryland.