1. Department of Neurology and Rehabilitation Medicine, University of Cincinnati, Cincinnati, Ohio, USA.
2. Department of Emergency Medicine, University of Cincinnati, Cincinnati, Ohio, USA.
3. Department of Neurosurgery, University of Cincinnati, Cincinnati, Ohio, USA.
4. Collaborative for Research on Acute Neurological Injuries, Cincinnati, Ohio, USA.
5. Department of Emergency Medicine, Washington University, St. Louis, Missouri, USA.