[1] Biogen, Cambridge, MA USA
[2] Dasman Diabet Inst, Dasman, Kuwait
[3] Univ Hosp Paris Saclay, Bicetre Hosp, AP HP, Pediat Neurol Dept, Le Kremlin Bicetre, France
[4] French Reference Network Rare Inflammatory Brain, Le Kremlin Bicetre, France
[5] Neurol Ctr Latium, Rome, Italy
[6] Univ Lille, CHU Lille, FHU Precise, INSERM,UMR U 1172, Lille, France