1. Unit of Neuroepidemiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
2. Unit of Neuroimmunology and Neuromuscular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
3. Unit of Clinical and Experimental Epileptology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
4. Italian Multiple Sclerosis Society and Research Foundation (FISM), Genoa, Italy
5. Department of Neurosciences, San Camillo- Forlanini Hospital, Roma, Italy