1. Department of Neurosurgery, Indiana University School of Medicine, Indianapolis, Indiana, USA.
2. Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
3. Department of Critical Care, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
4. Department of Emergency Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
5. Department of Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
6. Department of Physical Medicine and Rehabilitation, Indiana University School of Medicine, Indianapolis, Indiana, USA.
7. Department of Neurology, Indiana University School of Medicine, Indianapolis, Indiana, USA.
8. Department of Biomedical Informatics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.