1 Department of Neurology, Focus Program Translational Neuroscience (FTN), Rhine-Main Neuroscience Network (rmn(2)), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany.
2 Department of Neurology, Focus Program Translational Neuroscience (FTN), Rhine-Main Neuroscience Network (rmn(2)), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany; Mutiple Sclerosis Centre of Catalonia (Cemcat), Department of Neurology, Hospital Universitary Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain.
3 Department of Neurology, Heinrich Heine University, Düsseldorf, Germany.
4 Department of Neurology, Focus Program Translational Neuroscience (FTN), Rhine-Main Neuroscience Network (rmn(2)), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany. Electronic address: segroppa@uni-mainz.de.