1. Department of Stroke and Neuroscience Charing Cross Hospital, Imperial College London NHS Healthcare Trust London United Kingdom
2. Department of Brain Sciences Imperial College London London United Kingdom
3. Department of Neurology Martin‐Luther‐University Halle‐Wittenberg Halle (Saale) Germany
4. Stroke Unit and Clinical Neurology Udine University Hospital Udine Italy
5. Department of Biotechnological and Applied Clinical Sciences University of L’Aquila L’Aquila Italy
6. Interventional Neuroradiology Vall d’Hebron University Hospital Barcelona Catalunya Spain
7. Neurology and Stroke Unit, Ospedale Infermi Rimin Italy
8. Neurology and Stroke Unit, Department of Neuroscience Bufalini Hospital, Azienda Unità Sanitaria Locale Romagna Cesena Italy
9. Neuroradiology, Department of Imaging, Charing Cross Hospital, Imperial College London NHS Healthcare Trust London United Kingdom
10. Philip Kistler Research Center, Department of Neurology Massachusetts General Hospital and Harvard Medical School Boston MA USA
11. Clinical Neurology Udine University Hospital and Dipartmento di Area Medica, University of Udine Udine Italy
12. Department of Neurology, Radiology Boston Medical Center Boston MA USA