1. Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, I Clinic of Neurology, University of Campania “Luigi Vanvitelli,” Naples, Italy
2. Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy/ Hospital Franz Tappeiner, Department of Neurology, Merano, Italy
3. Multiple Sclerosis Clinical Care and Research Centre, Department of Neuroscience, Reproductive Science and Odontostomatology, Federico II University, Naples, Italy/ Queen Square Multiple Sclerosis Centre, University College of London Institute of Neurology, London, UK
4. Department of Neurology and Institute of Experimental Neurology-INSPE, University Hospital San Raffaele, Milan, Italy
5. Multiple Sclerosis Clinical Care and Research Centre, Department of Neuroscience, Reproductive Science and Odontostomatology, Federico II University, Naples, Italy
6. Department of Clinical and Biological Sciences, University of Turin, AOU San Luigi Gonzaga, Orbassano, Italy
7. The Blizard Institute (Neuroscience), Queen Mary University of London, Barts and The London School of Medicine and Dentistry, London, UK/ Clinical Board: Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, London, UK
8. Department of Rehabilitation Mons L Novarese Hospital, Moncrivello, Italy
9. Department of Neurosciences, S. Camillo-Forlanini Hospital, Roma, Italy