Joachim Röther, Giovanni Novi, Friedemann Paul, Bertrand Audoin, Robert Berger, Nadja Siebert, Matthias Grothe, Antoine Gueguen, Katrin Giglhuber, Michael Deppe, Helen K Hayward-Könnecke, Jan-Patrick Stellmann, Markus Kraemer, Romain Deschamps, Axel Haarmann, Romain Marignier, Hélène Zéphir, Sven G. Meuth, Ingo Kleiter, Paulus S. Rommer, Damien Biotti, Klemens Ruprecht, Ilya Ayzenberg, Philipp Albrecht, Kerstin Hellwig, Anna Gahlen, Achim Berthele, Sven Jarius, Brigitte Wildemann, Corinna Trebst, Hans-Peter Hartung, Tania Kümpfel, Martin W. Hümmert, Tobias Zrzavy, Michael J. Levy, Daniel Whittam, Nicolas Collongues, Michael Karenfort, Gero Lindenblatt, Antonios Bayas, Orhan Aktas, Anu Jacob, Barbara Kornek, Jonathan Ciron, Ralf Gold, Katinka Fischer, Vivien Häußler, Marius Ringelstein, Sven Schippling, Heinrich Heine Universität Düsseldorf = Heinrich Heine University [Düsseldorf], Department of Neurology St. Josef-Hospital, Ruhr University Bochum, Germany, Department of Neurology Sechenov First Moscow State Medical University, Russia, Department of Neurology Johanna Etienne Hospital, Neuss, Germany, Department of Neurology San Martino Hospital, Genova, Italy, Neuroimmunology and MS Research Department of Neurology, University Hospital Zürich, Switzerland, Medizinische Universität Wien = Medical University of Vienna, Département Neurologie [CHU Toulouse], Pôle Neurosciences [CHU Toulouse], Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Institut Toulousain des Maladies Infectieuses et Inflammatoires (Infinity), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Pôle de Neurosciences Cliniques, Service de Neurologie, APHM, Hôpital de la Timone, Aix-Marseille University, Marseille, France, Centre de résonance magnétique biologique et médicale (CRMBM), Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)-Centre National de la Recherche Scientifique (CNRS), Centre d'Exploration Métabolique par Résonance Magnétique [Hôpital de la Timone - APHM] (CEMEREM), Hôpital de la Timone [CHU - APHM] (TIMONE)-Centre de résonance magnétique biologique et médicale (CRMBM), Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)-Centre National de la Recherche Scientifique (CNRS), Technical University of Munich, School of Medicine, Department of Neurology, Klinikum rechts der Isar, Germany, Université de Lille, Institute of Clinical Neuroimmunology, Faculty of Medicine, Ludwig Maximilian University, Munich, Department of Neurology, Asklepios Klinik Altona, Hamburg, Department of Neurology and Institute of Neuroimmunology and MS (INIMS), University Medical Center Hamburg-Eppendorf, Germany, Department of Neurology, The Walton Centre, Liverpool, United Kingdom, the Cleveland Clinic Abu Dhabi, UAE, Department of Neurology, Alfried Krupp Hospital, Essen, Germany, Department of Neurology, Fondation Ophtalmologique Adolphe de Rothschild, Paris, France, Department of Neurology, Universitätsklinikum Augsburg, Department of Neurology, Hannover Medical School, Department of Neurology, University of Würzburg, Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Department of Neurology, University hospital Greifswald, NeuroCure Clinical Research Center and Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité Universitätsmedizin Berlin, Freie Universität Berlin, Department of Neurology, University Hospital Strasbourg, Service de neurologie, sclérose en plaques, pathologies de la myéline et neuro-inflammation - Hôpital Neurologique Pierre Wertheimer Hospices Civils de Lyon, France, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, Department of Neurology, University Hospital, Münster, Department of Neurology Medical University of Vienna, Austria, Department of Neurology B4 unit, CRC-SEP, Toulouse Purpan University Hospital, France, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre d'Exploration Métabolique par Résonance Magnétique [Hôpital de la Timone - AP-HM] (CEMEREM), and RANJEVA, Jean-Philippe