[1] Univ Verona, Dept Neurol & Movement Sci, Anat & Histol Sect, I-37134 Verona, Italy
[2] IRCCS Ctr Neurolesi Bonino Pulejo, Messina, Italy
[3] Osped Civile, Neurol Unit, I-37126 Verona, Italy
[4] Univ Toronto, Div Neurol, Movement Disorders Ctr, TWH,UHN, Toronto, ON, Canada
[5] Univ Verona, Dept Neurol & Movement Sci, Neurol Sect, I-37100 Verona, Italy