1. Department of Medicine and Neurology, Melbourne Brain Centre (F.C.N., N.Y., G.S., S.M.D., B.C.V.C.), Royal Melbourne Hospital, University of Melbourne, Parkville, Australia.
2. Department of Neurology, Austin Health, Heidelberg, Australia (F.C.N.).
3. Population Health and Immunity Division, The Walter and Eliza Hall Institute of Medical Research. Parkville, Australia (N.Y.).
4. Altair Biostatistics, St Louis Park, MN (S.B.B.).
5. Department of Radiology (M.G.), University of Calgary, Foothills Hospital, AB, Canada.
6. Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, location AMC, the Netherlands (C.B.L.M.M.).
7. Cooper Neurological Institute, Cooper University Health Care, Camden, NJ (T.G.J.).
8. Department of Clinical Neurosciences, Hotchkiss Brain Institute, Cumming School of Medicine (M.D.H., A.M.D., B.K.M.), University of Calgary, Foothills Hospital, AB, Canada.
9. Institute of Neuroscience and Psychology, University of Glasgow, Queen Elizabeth University Hospital, United Kingdom (K.W.M.).
10. Department of Neurology and Comprehensive Stroke Center, David Geffen School of Medicine (J.L.S.), University of California, Los Angeles.
11. Stanford Stroke Center, Stanford University, CA (J.L.S.).
12. Clinical Investigation Centre—Clinical Epidemiology INSERM 1433, University of Lorraine, University Hospital of Nancy, France (F.G.).
13. Department of Radiology, Hospital Clínic, Barcelona, Spain (L.S.R.).
14. Neurovascular Imaging Research Core, Department of Neurology (D.S.L.), University of California, Los Angeles.
15. Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, United Kingdom (P.W.).
16. Department of Neurology, Erasmus MC University Medical Center, Rotterdam, the Netherlands (D.W.J.D.).
17. Department of Neuroscience, Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona, Spain (A.D.).
18. Department of Diagnostic and Interventional Neuroradiology, INSERM U 947, University of Lorraine and University Hospital of Nancy, France (S.B.).
19. Department of Radiology (P.J.M.), Royal Melbourne Hospital, University of Melbourne, Parkville, Australia.
20. Biogen, Cambridge, MA (M.J.W.).
21. Department of Neurology, Yale-New Haven Hospital, CT (K.N.S.).
22. Centre for Genomic Medicine, Department of Neurology, Massachusetts General Hospital, Boston (W.T.K.).