1. From the Department of Radiology and Clinical Neurosciences, University of Calgary, AB, Canada (M.G., B.K.M., A.D., M.D.H.); Department of Medicine, University of Ottawa, ON, Canada (M.S.); Comprehensive Stroke Center and Department of Neurology, David Geffen School of Medicine at the University of California, Los Angeles (J.L.S.); Department of Neurology, University Hospital Essen, Germany (H.-C.D.); Department of Neurosurgery, Vanderbilt University, Nashville, TN (J.M.); University Hospital of...