1. Department of Neurology, University of Amsterdam, Academic Medical Center, Amsterdam, the Netherlands
2. Neurovascular Imaging Research Core and the UCLA (University of California, Los Angeles) Stroke Center, Los Angeles
3. Department of Radiology, Monash Health, Victoria, Australia
4. Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Department of Neurology, Emory University School of Medicine, Atlanta, Georgia
5. Department of Neurology, Oregon Health Science University, Portland
6. Department of Neurosciences, Hospital Germans Trias I Pujol, Universitat Autònoma de Barcelona, Barcelona, Spain
7. Department of Neuroradiology, Hôpital Gui-de-Chauliac, Montpellier, France
8. Division of Interventional Neuroradiology, UCLA
9. Department of Neurology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
10. Departments of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
11. Department of Neurology and Comprehensive Stroke Center, David Geffen School of Medicine at UCLA
12. Division of Neuroradiology, Department of Medical Imaging, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada13Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada