1. Neuroendovascular Program, Massachusetts General Hospital, Harvard University, Boston (A.A.D., M.D., J.E.V., J.D.R., S.G., N.M.A., P.H., A.B.P.).
2. Neuroradiology & Neurosurgery Services, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA (A.A.D., Y.I., K.S.C., M.A.A.-S.).
3. Division of Diagnostic and Therapeutic Neuroradiology, Department of Medical Imaging, St. Michael’s Hospital, Toronto, ON, Canada (J.D.B.D., R.A., S.T., P.J.).
4. Department of Neurosurgery, Thomas Jefferson University, Philadelphia, PA (A. Sweid, A. Savardekar, N.A.).
5. Departments of Neurosurgery and Interventional Neuroradiology, Louisiana State University, Shreveport (H.H.C.-S., C. Cognard).
6. Service de Neuroradiologie Diagnostique et Thérapeutique, Centre Hospitalier de Toulouse, Hôpital Purpan, France (S.V.L., A.G., S.E., B.L.).
7. Service de Neuroradiologie Interventionnelle, Hôpital Universitaire Erasme, Bruxelles Belgique (A.G., C. Capirossi, N.L.).
8. Interventistica Neurovascolare, Ospedale Careggi di Firenze, Florence, Italy (L.R., S.B., J.K.).
9. Neurosurgery & Interventional Neuroradiology, New York Presbyterian Hospital, Weill Cornell School of Medicine, NY (A.A.B., S.H.S., J.C.).
10. Service de Radiodiagnostic et Radiologie Interventionnelle, Centre Hospitalier Vaudois de Lausanne, Switzerland (G.S.).
11. Sektion Vaskuläre und Interventionelle Neuroradiologie, Universitätsklinikum Heidelberg, Germany (M.M., C.U., R.W.R., C.J.S.).
12. Equipo de Neurocirugía Endovascular y Radiología Intervencionista, Clínica La Sagrada Familia, Buenos Aires, Argentina (I.L., J.A.V., P.L.).
13. Neurosurgery Group, Orlando Health Neuroscience and Rehabilitation Institute, Orlando, FL (P.M.F.).
14. Subdivision of Interventional Neuroradiology, Department of Radiology, Clinical Hospital Center ‘Sisters of Mercy’, Zagreb, Croatia (V.Ž., V.K.).
15. Department of Neurosurgery, UTMB and Baylor School of Medicine, Houston, TX (M.U.H., F.C.A., P.K.).
16. Department of Neurosurgery, Barrow Neurological Institute, Phoenix, AZ (C.R., A.F.D.).
17. Department of Neurosurgery, State University of New York at Buffalo (M.W., V.M.T., A. Siddiqui).
18. Neurointerventional Services, Department of Radiology, Austin Health, Melbourne, Victoria, Australia (Y.R., H.A., M.B., J.M., A.J.).
19. Department of Neurosurgery and Radiology, Geisinger Hospital, Danville, PA (C.M.S., C.J.G.).
20. Research Institute of Neurointervention, Paracelsus Medical University, Salzburg, Austria (C.M.S., C.J.G.).
21. Interventistica Neurovascolare, Ospedale Niguarda Cà Granda, Milano, Italy (M.P., G.P.).
22. Department of Neurointerventional Radiology, UMass Memorial Hospital, Worcester, MA (A.L.K., A.S.P.).
23. Interventistica Neurovascolare, Ospedale San Raffaele Milano, Italy (C.M., P.P.).
24. Deparment of Neurosurgery, University of Miami, FL (R.M.S.).