1. From the Department of Diagnostic and Therapeutic Neuroradiology (F.Z., S.B., B.G.)
2. Stroke Unit, University Hospital of Nancy, University of Lorraine, INSERM U1254, IADI, Nancy, France; Department of Stroke Center (B.L.)
3. Department of Biostatistics, University Lille, CHU Lille, EA 2694–Santé Publique: Epidémiologie et Qualité des Soins, France (M.K., J.L., A.D.)
4. Foch Hospital, Suresnes, France; Department of Interventional Neuroradiology, Rothschild Foundation, Paris, France (R.B., M.B.M., M.M., M.P.)
5. Department of Neuroradiology, University Hospital of Bordeaux, France (G.M.)
6. Department of Interventional Neuroradiology, University Hospital of Limoges, France (S.S.)
7. Department of Neuroradiology, Hôpital Gui de Chauliac, Montpellier, France (V.C.)
8. Department of Neurology (S.R.)
9. Department of Neuroradiology, Guillaume et René Laennec University Hospital, Nantes, France (H.D.).
10. Department of Neuroradiology (A.C.)