1. From the Department of Neurology, Erasmus MC University Medical Center the Netherlands (V.C., D.W.J.D.)
2. Department of Public Health, Erasmus MC University Medical Center the Netherlands (V.C., H.F.L.)
3. Department of Radiology and Nuclear Medicine, Erasmus MC University Medical Center the Netherlands (V.C.)
4. Department of Neurology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, the Netherlands (I.R.d.R., R.J.v.O.)
5. Altair Biostatistics, St. Louis Park, MN (S.B.)
6. Department of Diagnostic and Interventional Neuroradiology (S.B.)
7. Departments of Clinical Neuroscience and Radiology, Hotchkiss Brain Institute, Cummings School of Medicine, University of Calgary, Canada (M.G., M.D.H., A.M.D.)
8. Department of Medicine and Neurology, Royal Melbourne Hospital, University of Melbourne, Australia (B.C.V.C.)
9. Institute of Neuroscience and Psychology, University of Glasgow, Queen Elizabeth University Hospital, United Kingdom (K.W.M.)
10. Department of Clinical Epidemiology, Inserm, University of Lorraine and University Hospital of Nancy, France (F.G.)
11. Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, United Kingdom (P.W.)
12. Department of Neuroscience, Hospital Germans Trias y Pujol, Barcelona, Spain (A.D.)
13. Department of Neurology, Stroke Institute, University of Pittsburgh Medical Center Stroke Institute, Presbyterian University Hospital, PA (T.G.J.)
14. Department of Radiology, Royal Melbourne Hospital, University of Melbourne, Australia (P.J.M.)
15. Department of Neurology and Comprehensive Stroke Center, David Geffen School of Medicine, University of Los Angeles, CA (J.L.S.).
16. Department of Radiology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, the Netherlands (W.H.v.Z.)