1. Department of Medicine, University of Ottawa and The Ottawa Hospital, Ontario, Canada (H.F., D.D., M.S.).
2. Ottawa Hospital Research Institute, Ontario, Canada (H.F., B.D., D.D., M.S.).
3. Calgary Stroke Program, University of Calgary and Foothills Hospital, Alberta, Canada (C.K., M.D.H., S.B.C., M.A., T.S., N.S., A.S., B.K.M.).
4. Calgary Conjoint Health Research Ethics Board, Alberta, Canada (S.P.).
5. University of Alberta and University Hospital, Edmonton, Canada (B.B.).
6. University of Toronto and Sunnybrook Hospital, Ontario, Canada (R.H.S.).