1. Department of Neurology, Thomas Jefferson Neuroimmunology Unit, Philadelphia, PA and National and Department of Pathophysiology, Kapodistrian University of Athens, Greece
2. Neuroimmunology Unit, Weill Cornell Medical College, New York, NY, USA
3. Department of Neurology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
4. Department of Neurology, Albert Schweitzer Hospital, Dordrecht, The Netherlands