1. Department of Neurosciences, Catholic University of Rome, Italy
2. Department of Neurological and Movement Sciences, University of Verona, Italy
3. Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari, Italy
4. Department of Experimental Biomedicine and Clinical Neurosciences, University of Palermo, Italy
5. Centro Studi SM, AO Sant’Antonio Abate - Gallarate (VA), Italy
6. Department of Neurology, San Raffaele Hospital, Milan, Italy
7. Centro di Riferimento Regionale per la Sclerosi Multipla-Neurologia 2, A.O.U. San Luigi Gonzaga, Orbassano, Italy
8. Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Naples, Naples, Italy
9. Institute of Psychological Medicine and Clinical Neurosciences, School of Medicine, University Hospital of Wales, Cardiff University, UK
10. Don Carlo Gnocchi Foundation, Rome, Italy
11. Neurology Unit - Azienda Sanitaria Locale 3, Genovese, Genoa, Italy
12. San Camillo Forlanini Hospital, Rome, Italy