Major Clinical Trials

Received March 26, 2012; final revision received June 3, 2012; accepted June 18, 2012. From the Neurovascular & Neuroradiology Research Unit, Nuffield Department of Surgical Sciences (A.M., A.C., M.S.) and the Department of Clinical Neurology (Z.M.), University of Oxford, Oxford, UK; the Department of Neuroradiology, Royal Hallamshire Hospital, Sheffield, UK (S.C.); the Department of Radiology, Notre Dame Hospital, Montreal, Canada (D.R.); the Department of Radiology, St Mary’s Hospital, Mayo Clinic, Rochester, MN (D.F.K.); and the Department of Neuroradiology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada (A.J.F.). Correspondence to Andrew J. Molyneux, FRCR, Oxford Neurovascular and Neuroradiology Research Unit, Level 6, West Wing, John Radcliffe Hospital, Oxford UK OX3 9DU. E-mail [email protected]. © 2012 American Heart Association, Inc.