1. Department of Neurology University of Tennessee Health Science Center Memphis TN USA
2. Second Department of Neurology National and Kapodistrian University of Athens ‘Attikon’ University Hospital Athens Greece
3. Department of Neurosurgery University of Tennessee Health Science Center Semmes‐Murphey Neurologic and Spine Clinic Memphis TNUSA
4. Charleston Division Department of Neurology West Virginia University Charleston WVUSA
5. Cerebrovascular Program Vanderbilt University Nashville TNUSA
6. Department of Neurosurgery Medical University of South Carolina Charleston SC USA
7. Department of Neuroradiology University Medical Center Göttingen Göttingen Germany
8. Departments of Neurosurgery and Radiology University at Buffalo Buffalo NY USA
9. Department of Neurology and Neurogeriatry Johannes Wesling Medical Center Minden University Clinic RUB MindenGermany
10. Department of Neurology St Josef‐Hospital Ruhr University of Bochum Bochum Germany
11. Division of Neurology Department of Medicine University of Alberta Edmonton AB Canada
12. Department of Neurology Hamad General Hospital Doha Qatar
13. Department of Neurosurgery University of South Florida Tampa FL USA
14. Department of Neurology Hadassah‐Hebrew University Medical Center JerusalemIsrael
15. Department of Neurosurgery Hadassah‐Hebrew University Medical Center Jerusalem Israel
16. Acute Stroke Unit Metropolitan Hospital Piraeus Greece
17. Department of Neurology Beth Israel Deaconess Medical CenterHarvard Medical School Boston MA USA
18. Yong Loo Lin School of Medicine National University of Singapore SingaporeSingapore
19. Division of Neurology National University Hospital Singapore Singapore
20. Stroke Unit Divisione di Medicina Cardiovascolare Università di Perugia Perugia Italy
21. Department of Interventional and Diagnostic Neuroradiology Sahlgrenska University Hospital Gothenburg Sweden
22. Department of Neurosurgery Mount Sinai Medical Center New York NYUSA
23. Department of Neurology Henry Ford Hospital Detroit MI USA
24. Department of Neurology School of Medicine University of Crete Herakleion Greece