1. Synaptopathies and AutoantibodiesFaculty of Medicine Jacques LisfrancUniversity Jean MonnetUniversity of Lyon 42270 Saint‐Priest en Jarez France
2. Institut NeuroMyoGene INSERM U1217/CNRS UMR 5310University Jean MonnetUniversity of Lyon 42270 Saint‐Priest en Jarez France
3. Biochemistry LaboratoryCentre Hospitalier Universitaire de Saint‐Étienne 42055 Saint‐Étienne France
4. Neurology DepartmentCentre Hospitalier Universitaire de Saint‐Étienne 42055 Saint‐Étienne France