1. Department of Neuroscience; IRCCS-Institute of Pharmacological Research “Mario Negri”; Milan Italy
2. Department of Pediatrics, Neurology-Immunology and Endocrinology Unit; University of Siena; Siena Italy
3. Department of Experimental and Clinical Medicine; Section of Neurology; University of Pisa; Pisa Italy
4. Clinic of Nervous System Diseases; University of Bari; Bari Italy
5. Department of Nurosciences; University of Messina; Messina Italy
6. Clinic of Nervous System Diseases; A.O.U. OORR; University of Foggia; Foggia Italy
7. Department of Pediatrics; University of Perugia; Perugia Italy
8. Unit of Neurology; IRCCS-Institute of Neurological Sciences of Bologna; Bellaria Hospital; Bologna Italy
9. IRCCS-Institute of Neurological Sciences of Bologna; Bellaria Hospital; Bologna Italy
10. Unit of Neurology; “San Giovanni di Dio” Hospital; Florence Health District, Florence Italy