1. Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy2Division of Neurocritical Care and Emergency Neurology, Department of Neurology, Massachusetts General Hospital, Boston3J. Philip Kistler Stroke Research Center, Massachusetts General Hospital, Boston
2. J. Philip Kistler Stroke Research Center, Massachusetts General Hospital, Boston
3. Division of Neurocritical Care and Emergency Neurology, Department of Neurology, Massachusetts General Hospital, Boston3J. Philip Kistler Stroke Research Center, Massachusetts General Hospital, Boston
4. Neuroradiology Service, Department of Radiology, Massachusetts General Hospital, Boston
5. Division of Neurocritical Care and Emergency Neurology, Department of Neurology, Massachusetts General Hospital, Boston3J. Philip Kistler Stroke Research Center, Massachusetts General Hospital, Boston5Department of Emergency Medicine, Massachusetts General Hospital, Boston