1. Hemorrhagic Stroke Research Program, Department of Neurology, J. Philip Kistler Stroke Research Center (M.P., T.P., A.C., S.D.S., L.X., A.D.W., A.V., M.E.G., S.M.G.), Massachusetts General Hospital, Harvard Medical School, Boston
2. From the Department of Pharmacology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand (T.P.)
3. Department of Neurology, National Taiwan University Hospital Bei-Hu Branch, Taipei, Taiwan (H.-H.T.)
4. Department of Neuroradiology, INSERM UMR 894, Centre Hospitalier Sainte-Anne, Université Paris-Descartes, France (G.B.)
5. Division of Neurocritical Care and Emergency Neurology (J.R.), Massachusetts General Hospital, Harvard Medical School, Boston
6. C.S. Kubik Laboratory for Neuropathology, Massachusetts General Hospital, Harvard Medical School, Boston (M.P.F.).