1. Gardner Family Center for Parkinson’s Disease and Movement Disorders, Department of Neurology, University of Cincinnati, Cincinnati, OH, USA
2. IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC Clinica Neurologica NeuroMet, Ospedale Bellaria, Bologna, Italy
3. Dipartimento di Scienze Biomediche e Neuromotorie, Università Bologna, Bologna, Italy
4. Department of Neurology, Santa Maria University Hospital, Terni, Italy