1. Department of Neurology, Hopital de Hautepierre, France
2. Department of Neurology, Hopital Purpan, France
3. Department of Neurology, Hopital Pitie-Salpetriere, France
4. Department of Neurology, Hopital Universitaire de Montpellier, France
5. Department of Neurology, Centre Hospitalier Universitaire de Bordeaux, France
6. Department of Neurology, Hopital Universitaire de Dijon, France
7. Department of Neurology, Hopital Charles Nicolle, France
8. Department of Neurology, Hopital Universitaire de Marseille, France
9. Department of neurology, Hôpital Neurologique Pierre Wertheimer, Hospices Civils de Lyon, France