1. Department of Neurology, Klinikum Frankfurt Höchst, Frankfurt, Germany
2. Department of Neurology, Heidelberg University, Heidelberg, Germany
3. Division of Clinical Neurosciences, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
4. Department of Neurology, Neurointensive Care Unit, Medical University Hospital, Innsbruck, Austria
5. Department of Neurology, Bispebjerg Hospital, University of Copenhagen, Denmark
6. Department of Neurology, EA 1046, Université Lille Nord de France, Lille, France
7. Department of Neurology, Clinical Center, Debrecen University, Hungary
8. Department of Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
9. Department of Neurosurgery, Sheba Medical Center, Tel Aviv, Israel
10. Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
11. Institute of Neurosciences, Newcastle University, Newcastle, UK
12. Department of Neurology, Hospital Universitari Vall d'Hebrón, Barcelona, Spain
13. Department of Neurology, Skåne University Hospital, Malmö, Sweden
14. Division of Clinical Neurosciences, Turku University Hospital and University of Turku, Turku, Finland
15. Department of Neurosurgery, Saarland University Hospital, Homburg-Saar, Germany
16. Department of Neurology, Hôpital Lariboisière, Université Paris VII – Denis Diderot, Paris, France
17. Department of Neurology, Helsinki University Central Hospital, Helsinki, Finland
18. Cochrane Stroke Group, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
19. Depatment of Neurology and Psychiatry, Sapienza University of Rome, Rome, Italy
20. Department of Neurosurgery, Heidelberg University Hospital, Heidelberg, Germany
21. Stiftung Deutsche Schlaganfall-Hilfe, Gütersloh, Germany