Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy

Correspondence to Stefano Tamburin, MD, PhD, Section of Neurology, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Piazzale Scuro 10, I-37134 Verona, Italy. Tel: +39 347 523 5580; fax: +39 045 802 7276; e-mail: [email protected]