1. Department of Diagnostic and Interventional Neuroradiology, Hôpital Foch; Suresnes, France
2. Department of Clinical Neuroradiology, Hôpital Neurologique, Centre Hospitalier de Nancy; France
3. Hyman-Newman Institute for Neurology and Neurosurgery, St Lukes Roosevelt and Beth Israël; New York, USA
4. Department of Neuroradiology, CHU Jean Minjoz; Besançon, France
5. Department of Interventional Neuroradiology, Lahey Hospital and Medical Center; Boston, USA
6. Department of Neurosurgery, Xuanwu Hospital, Capital Medical University; Beijing, China
7. Neurosurgical clinic, Nakamura Memorial Hospital; Sapporo, Japan
8. Division of Neurosurgery, Groote Schuur Hospital, University of Cape Town; South Africa
9. Neuroradiology Unit, IRCCS Institute of Neurological Sciences, Department of Neuroscience, University of Bologna, Italy
10. Department of Neuroradiology, Center for Radiology, Friedrich Schiller University; Jena, Germany
11. Department of Neurosurgery, Nagoya University Graduate School of Medicine; Nagoya, Japan
12. Department of Neuroradiology, Ospedale Cardarelli; Naples, Italy
13. Department of Neuroradiology, Hospital Beneficencia Portoguesa; Sao Paolo, Brazil
14. Department of Radiology, Rhamatibodi Hospital; Bangkok, Thailand
15. Depatment of Neuroradiology, BetaKlinik; Bonn, Germany
16. Department of Neuroradiology, Karolinska Hospital, Stockholm, Sweden
17. Department of Radiology, Asan Medical Center; Seoul, Korea
18. Department of Diagnostic and Interventional Neuroradiology, Montreal Neurological Hospital and Institute; Montreal, Canada
19. Department of Neuroradiology, Toronto Western Hospital; Toronto, Canada
20. Department of Neuroradiology, University Hospital of Zurich; Zurich, Switzerland
21. Department of Radiology, AZ Amsterdam; The Netherlands