1. Division of Neurocritical Care and Emergency Neurology, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston2J. P. Kistler Stroke Research Center, Massachusetts General Hospital, Harvard Medical School, Boston
2. Department of Neurosurgery, Brain Center Rudolf Magnus University Medical Center, Utrecht, the Netherlands
3. J. P. Kistler Stroke Research Center, Massachusetts General Hospital, Harvard Medical School, Boston4Neuroradiology Service, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston
4. J. P. Kistler Stroke Research Center, Massachusetts General Hospital, Harvard Medical School, Boston
5. Zeenat Qureshi Stroke Research Center, University of Minnesota, Minneapolis
6. Department of Public Health Sciences, Medical University of South Carolina, Charleston
7. Division of Neurocritical Care and Emergency Neurology, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston2J. P. Kistler Stroke Research Center, Massachusetts General Hospital, Harvard Medical School, Boston7Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston