1. C. Besta Neurological Institute; IRCCS Foundation; Milan Italy
2. MRC Centre for Neuromuscular Diseases; Institute of Neurology; University College London; London UK
3. Department of Neurology, Ophthalmology and Genetics; University of Genoa; Genoa Italy
4. Department of Neurological, Neuropsychological, Morphological and Motor Sciences; University of Verona; Verona Italy
5. Department of Neurosciences, Reproductive and Odontostomatological Sciences; University Federico II of Naples; Naples Italy
6. Department of Neurosciences; University of Messina; Messina Italy
7. Clinical Centre NEMO SUD; Fondazione Aurora Onlus; Messina Italy
8. Neurology Clinic; Neuroimaging Research Unit; National Research Council; Magna Graecia University; Catanzaro Italy
9. Department of Geriatrics; Neurosciences and Orthopaedics - Università Cattolica del Sacro Cuore; Rome; Don Carlo Gnocchi Foundation Milan Italy
10. Department of Neurosciences; University of Parma; Parma Italy
11. Department of Pharmacological Sciences; University School of Pharmacy; Milan Italy
12. Department of Molecular Medicine; University of Padua; Padua Italy
13. Department of Epidemiology and Biostatistics; European Institute of Oncology; Milan Italy