1. Department of Clinical Neurophysiology, Kuopio University Hospital, University of Eastern Finland, Kuopio, Finland;
2. Department of Neurology, University Campus Biomedico, Rome, Italy;
3. AFaR Department of Neuroscience, Ospedale Fatebenefratelli, Isola Tiberina, Rome, Italy;
4. Department of Clinical Radiology, Kuopio University Hospital, Kuopio, Finland;
5. Department of Neurology, Catholic University, Rome, Italy; and
6. L'Instituto di Ricovero e Cura a Carattere Scientifico San Raffaele Pisana, Rome and Casa di Cura San Raffaele, Cassino, Italy