1. From the Department of Neurology and Stroke Center (M.D.M., L.H.B.), University Hospital Basel, University of Basel, Switzerland
2. Department of Clinical Research, Clinical Trial Unit (S.v.F.), University Hospital Basel, University of Basel, Switzerland
3. Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus and Julius Center for Health Sciences and Primary Care (A.A.), University Medical Center Utrecht, the Netherlands
4. Vascular Institute Paris East, Hôpital privé Paul D’Egine, Ramsay Group, France (J.-P.B.)
5. Department of Brain Repair and Rehabilitation, UCL Institute of Neurology, University College London, United Kingdom (M.B., L.H.B.)
6. MRC Population Health Research Unit, Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, Oxford University, United Kingdom (R.B.)
7. Department of Neurology, Hôpital Sainte-Anne, Université Paris-Descartes, DHU Neurovasc Sorbonne Paris Cité, INSERM U894, France (D.C., J.-L.M.)
8. Department of Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University of Munich, Germany (H.-H.E.)
9. Department of Vascular Surgery, Medical University of Innsbruck, Austria (G.F.)
10. Nuffield Department of Surgical Sciences, John Radcliffe Hospital, Oxford, United Kingdom (A.H.)
11. Department of Radiology (J.H.), University Medical Center Utrecht, the Netherlands
12. Department of Medical Statistics, London School of Hygiene and Tropical Medicine, United Kingdom (J.G.)
13. Department of Biostatistics, UAB School of Public Health, Birmingham, AL (G.H.)
14. Clinic for Radiology and Neuroradiology, UKSH Campus Kiel, Germany (O.J.)
15. Department of Neurology, Mayo Clinic, Jacksonville, FL (T.G.B.)
16. Department of Neurology, University of Heidelberg Medical School, Germany (P.A.R.).