1. Department of Neurology, La Casamance Hospital, Aubagne, France
2. Department of Internal Medicine, European Hospital, Marseille, France
3. Department of Pathology and Neuropathology, CHU La Timone, Marseille, France
4. Reference Center for Neuromuscular Disorders, CHU La Timone, Marseille, France
5. Department of Neurology, Groupe Hospitalier Pellegrin, Bordeaux, France