1 L.C. Campbell Cognitive Neurology Research Unit, Heart and Stroke Foundation Canadian Partnership for Stroke Recovery, Brain Sciences Research Program, Sunnybrook Health Sciences Centre (SHSC), Toronto, Canada.
2 Department of Medicine, Division of Neurology, University of Toronto, Toronto, Canada.
3 Sleep Laboratory, SHSC, Toronto, Canada.
4 Sunnybrook Research Institute, SHSC, Toronto, Canada.
5 University of Toronto Stroke Program, Toronto, Canada.
6 Department of Neurology, Vanderbilt University School of Medicine, Nashville, TN.