1. From the Department of Radiology (M.G.), University of Calgary, Alberta, Canada
2. Department of Clinical Neurosciences (M.A.), University of Calgary, Alberta, Canada
3. Department of Neurology, Erasmus Medical Center, Rotterdam, the Netherlands (D.W.D.)
4. Department of Medicine and Neurology (B.C.V.C.), University of Melbourne, Australia
5. Institute of Neuroscience and Psychology, University of Glasgow, United Kingdom (K.M.)
6. Department of Clinical Neurosciences (A.M.D.), University of Calgary, Alberta, Canada
7. Department of Neuroscience, University Autònoma de Barcelona, Spain (A.D.)
8. Department of Clinical Epidemiology, Neuroradiologie diagnostique et thérapeutique, Nancy, France (F.G.)
9. Department of Neurology, Stroke Institute, University of Pittsburgh, PA (T.G.J.)
10. Department of Clinical Neurosciences (B.K.M.), University of Calgary, Alberta, Canada
11. Department of Radiology (P.J.M.), University of Melbourne, Australia
12. Neuroradiologie diagnostique et thérapeutique, Nancy, France (S.B.)
13. Altair Biostatistics, St. Louis Park, MN (S.B.)
14. Institute of Neuroscience, University of Newcastle, United Kingdom (P.W.)
15. Department of Radiology, Amsterdam Medical Center, the Netherlands (C.B.L.M.M.)
16. Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles (J.L.S.).
17. Calgary Stroke Program, Department of Clinical Neurosciences, Hotchkiss Brain Institute, Cumming School of Medicine, Health Science Centre (M.D.H.), University of Calgary, Alberta, Canada