1. Neurology Unit Department of Neurosciences, Biomedicine, and Movement Sciences University of Verona Verona Italy
2. Section of Clinical Biochemistry University of Verona Verona Italy
3. Service of Laboratory Medicine Pederzoli Hospital Verona Italy
4. Service de Neurologie Sclérose en Plaques Pathologies de la Myéline et Neuro‐inflammation Lyon University Hospital Lyon France