1. Sobell Department of Motor Neuroscience and Movement DisordersUniversity College London (UCL) Institute of Neurology London United Kingdom
2. Dipartimento di Scienze Neurologiche e del MovimentoUniversità di VeronaPoliclinico Borgo Roma Verona Italy
3. University of Naples “Federico II”Department of Neurological Science Naples Italy
4. IDC Hermitage–Capodimonte Naples Italy
5. University of Naples “Parthenope”Department of Motor Sciences Naples Italy
6. University of Salerno, Center for Neurodegenerative Diseases–CEMAND Salerno Italy
7. Neuropsychology Laboratory, Department of PsychologySecond University of Naples Caserta Italy
8. Alzheimer Center Reina Sofia Foundation Madrid Spain
9. CIBERNED, Carlos III Institute of Health Madrid Spain
10. National Parkinson Foundation International Center of ExcellenceKings College Hospital, Kings College London United Kingdom