1. Department of Neurology Yale School of Medicine New Haven CT
2. Department of Radiology Yale School of Medicine New Haven CT
3. Department of Neurosurgery Yale School of Medicine New Haven CT
4. Departments of Neurosurgery, Engineering Science and Mechanics and Physics Penn State University University Park PA
5. Athinoula A. Martinos Center for Biomedical Imaging Massachusetts General Hospital Charlestown MA
6. Department of Neurology, Division of Neurocritical Care Massachusetts General Hospital Boston MA