1. Department of Neurology, National Referral Center for Rare Neuromuscular Diseases; University Hospital Pitié-Salpêtrière and University Paris VI; Paris France
2. Department of Neurology; Geneva University Hospitals; Geneva Switzerland
3. Department of Neurophysiology; University Hospital Pitié-Salpêtrière and University Paris VI; Paris France
4. Department of Immunology, Laboratory of Immunochemistry & Autoimmunity; University Hospital Pitié-Salpêtrière and University Paris VI; Paris France
5. Centre d'Epidémiologie de Biostatistique et de Méthodologie de la Recherche; CHU Limoges; Limoges France
6. Tropical Neuroepidemiology; INSERM, U1094; Limoges France
7. Institute of Neuroepidemiology and Tropical Neurology, CNRS FR 3503 GEIST; University of Limoges, UMR_S 1094, Tropical Neuroepidemiology; Limoges France