1. Univ Rennes, EHESP, CNRS, Inserm, ARENES – UMR 6051, RSMS – U 1309, F-35000 Rennes, Rennes, France
2. INSERM CIC-P 1414, CRC-SEP Rennes University Hospital, Rennes University, Rennes, France
3. Neurology department, Rennes University Hospital, Rennes University, Rennes, France