1. Second Department of Neurology; ‘Attikon’ Hospital; School of Medicine; National and Kapodistrian University of Athens; Athens Greece
2. International Clinical Research Center and Neurology Department; St Anne's Hospital; Brno Czech Republic
3. Department of Neurology; University of Ioannina; Ioannina Greece
4. Second Department of Neurology; Institute of Psychiatry and Neurology; Warsaw
5. Department of Experimental and Clinical Pharmacology; Medical University of Warsaw; Warsaw
6. Department of Neuroradiology; Interventional Stroke and Cerebrovascular Disease Treatment Centre; Institute of Psychiatry and Neurology; Warsaw Poland
7. Department of Neurology; Faculty Hospital Nitra; Constantine University Nitra; Nitra Slovakia
8. Department of Vascular Neurology and Neurological Intensive Care; University Medical Centre Ljubljana; Ljubljana Slovenia
9. Department of Neurology; Medical and Health Science Center; University of Debrecen; Debrecen Hungary
10. Department of Neurology and Neurosurgery; University of Tartu; Tartu Estonia
11. Department of Neurology; Sestre Milosrdnice University Hospital Centre; Zagreb Croatia
12. Department of Neurology and Neurosurgery; Vilnius University and Republican Vilnius University Hospital; Vilnius
13. Department of Neurology and Neurosurgery; Center for Neurology; Vilnius University; Vilnius Lithuania
14. Neurology Department and Stroke Center; Memorial Sisli Hospital Istanbul; Istanbul Turkey
15. Second Department of Neurology; AHEPA University Hospital; Aristotle University of Thessaloniki; Thessaloniki Greece
16. Medical Faculty of Masaryk University; Brno Czech Republic