1. Acute Stroke UnitMetropolitan Hospital Piraeus Greece
2. Department of Clinical NeurophysiologyMetropolitan Hospital Piraeus Greece
3. Second Department of NeurologyMedical SchoolNational and Kapodistrian University of Athens“Attikon” University Hospital Athens Greece
4. Department of Vascular SurgeryMedical SchoolNational and Kapodistrian University of Athens“Attikon” University Hospital Athens Greece
5. Department of NeurologyThe University of Tennessee Health Science Center Memphis TN