1. Department of Neurology Centre Hospitalier de Valence Valence France
2. Electroneuromyography and Neuromuscular Diseases Department Centre Médicina Lyon France
3. Department of Neurology University Hospital Saint‐Etienne France
4. Department of Functional Neurology and Epileptology, Hôpital Neurologique Pierre Wertheimer Hospices Civils de Lyon Lyon France
5. Department of Biostatistics and Bioinformatics Hospices Civils de Lyon Lyon France