1. Cogito Center for Applied Neurocognition and Neuropsychological Research, Düsseldorf, Germany
2. Institute of Neuroimmunology and Multiple Sclerosis (INIMS), Center for Molecular Neurobiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
3. Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
4. Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland