1. Academic Medical Center, Amsterdam, The Netherlands
2. Leuven University Hospital, Leuven, Belgium
3. Medical University of Vienna, Vienna, Austria
4. Hôpital Saint-Louis, Université Paris Diderot, Paris, France
5. University of Lille, Lille, France
6. Erasme Hospital, Free University of Brussels, Brussels, Belgium
7. University of California San Diego, La Jolla, CA, USA
8. Charité Medical School, Humboldt-University of Berlin, Berlin, Germany
9. Mellen Center for MS Treatment and Research, Cleveland Clinic, Cleveland, OH, USA
10. Kimberton Drug Development Consulting, Phoenixville, PA, USA
11. Pfizer, Cambridge, MA, USA
12. McMaster University, Hamilton, ON, Canada
13. Neurology Section, VA North Texas Health Care System, Dallas, TX, USA
14. Southwestern Medical Center, University of Texas, Dallas, TX, USA
15. Department of Neurology, Klinikum rechts der Isar, Technische Universität München, Germany