1 Department of Neurology, University Hospital of Basel and University of Basel, Basel, Switzerland.
2 Departments of Biomedicine and Clinical Research, University Hospital of Basel and University of Basel, Basel, Switzerland.
3 Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), University Hospital of Basel and University of Basel, Basel, Switzerland.
4 Departamento de Neurologia, Instituto Central, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil.