1 Institute of Clinical Neuroimmunology, Biomedical Centre and University Hospital, Campus Martinsried-Grosshadern, Ludwig Maximilians University, Munich, Germany Munich Cluster of Systems Neurology (SyNergy), Munich, Germany reinhard.hohlfeld@med.uni-muenchen.de.
2 Division of Rheumatology and Clinical Immunology, Department of Internal Medicine IV, Campus Innenstadt, Ludwig Maximilians University, Munich, Germany.