1. Second Department of Neurology, National and Kapodistrian University of Athens, ‘Attikon University Hospital’, Iras 39, Gerakas Attikis, Athens, 15344, Greece
2. Second Department of Neurology, National and Kapodistrian University of Athens, ‘Attikon University Hospital’, Athens, Greece Department of Neurology, University of Ioannina, Ioannina, Greece
3. Stroke Unit, Department of Medicine and Cardiovascular Medicine, University of Perugia, Perugia, Italy