1. Second Department of Neurology School of Medicine ‘Attikon’ Hospital University of Athens Athens Greece
2. Department of Neurology St Josef‐Hospital Ruhr University Bochum Germany
3. Department of Vascular Surgery School of Medicine ‘Attikon’ Hospital University of Athens AthensGreece
4. Department of Vascular Surgery School of Medicine Democritus University of Thrace Alexandroupolis Greece
5. Department of Neurology St Anne's University Hospital in Brno and Masaryk University Brno Czech Republic
6. Department of Vascular Surgery St Josef‐Hospital Ruhr University Bochum Germany
7. Acute Stroke Unit Metropolitan Hospital PiraeusGreece
8. Second Department of Anaesthesiology School of Medicine ‘Attikon’ Hospital University of Athens Athens Greece