1. Neurology Unit , Department of Systems Medicine, , Via Montpellier 1, 00133 Rome , Italy
2. University of Rome “Tor Vergata” , Department of Systems Medicine, , Via Montpellier 1, 00133 Rome , Italy
3. Neuroradiology Unit , Department of Biomedicine and Prevention, , Via Montpellier 1, 00133 Rome , Italy
4. University of Rome “Tor Vergata” , Department of Biomedicine and Prevention, , Via Montpellier 1, 00133 Rome , Italy
5. UOSD Parkinson Centre, Tor Vergata University Hospital , Viale Oxford 81, 00133 Rome , Italy