1. Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
2. Department of Interventional Neuroradiology, University Hospital Muenster, Muenster, Germany
3. Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
4. Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
5. Department of Endovascular Therapy, Alfried-Krupp Hospital Essen, Essen, Germany
6. Department of Diagnostic and Interventional Neuroradiology, University Hospital Basel, Basel, Switzerland
7. Department of Diagnostic and Interventional Neuroradiology, Klinikum Rechts der Isar, School of Medicine, Technical University Munich, Munich, Germany
8. Institute of Neuroradiology, University Hospitals, Ludwig-Maximilians-Universität München, Munich, Germany
9. Department of Neuroradiology, Westpfalz-Klinikum, Kaiserslautern, Germany
10. Department of Neuroradiology, University Hospital Luebeck, Luebeck, Germany
11. Department of Neuroradiology, University of Cologne, Cologne, Germany
12. Institute for Diagnostic and Interventional Neuroradiology, University Hospital Goettingen, Goettingen, Germany
13. Department of Diagnostic and Interventional Neuroradiology and Nuclear Medicine, Universitätsklinikum Knappschaftskrankenhaus Bochum, Universitätsklinik der Ruhr-Universität Bochum, Bochum, Germany
14. Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
15. Institute for Diagnostic and Interventional Radiology, Pediatric and Neuroradiology, University Hospital Rostock, Rostock, Germany
16. Department of Interventional Neuroradiology, Johanna-Étienne-Hospital, Neuss, Germany
17. Institute of Neuroradiology, Charité Universitätsmedizin Berlin, Berlin, Germany
18. Department of Radiology, Klinikum Osnabrück, Osnabrück, Germany
19. Department of Neurology, Klinikum Osnabrück, Osnabrück, Germany
20. Division of Neurology, Department of Medicine, National University Health System, Singapore
21. Yong Loo Lin School of Medicine, National University of Singapore, Singapore
22. Department of Diagnostic Imaging, National University Health System, Singapore
23. Department of Diagnostic and Therapeutic Neuroradiology, Université de Lorraine, Centre Hospitalier Régional Universitaire de Nancy, Nancy, France
24. Université de Lorraine, Imagerie Adaptative Diagnostique et Interventionnelle, INSERM U1254, Nancy, France
25. Department of Interventional Neuroradiology, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
26. Department of Neuroradiology, Hospital Universitario La Paz, Madrid, Spain
27. Department of Radiology, New York Langone Medical Center, New York
28. Department of Neuroradiology, Karolinska University Hospital and Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
29. Department of Radiology, Comenius University's Jessenius Faculty of Medicine and University Hospital, Martin, Slovakia
30. Department of Neurology, Hospital Bremen-Mitte, Bremen, Germany
31. Department of Diagnostic and Interventional Neuroradiology, Hospital Bremen-Mitte, Bremen, Germany
32. Department of Radiology, Areteion University Hospital, National and Kapodistrian University of Athens, Athens, Greece
33. Institute of Diagnostic, Interventional and Pediatric Radiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland