1. Department of Neurology; IRCCS Oasi; Troina Italy
2. Department of Biomedical and Neuromotor Sciences; University of Bologna; Bologna Italy
3. Department of Neurology; San Raffaele Vita-Salute University; Milan Italy
4. Department of Social and Developmental Psychology; Sapienza University; Rome Italy
5. Neurocenter of Southern Switzerland; Civic Hospital (EOC) of Lugano and Neurology Department Inselspital; Bern University Hospital; Bern Switzerland