1. The fMRI Unit, Department of Neurology Hadassah Medical Organization Jerusalem Israel
2. The Faculty of Medicine The Hebrew University of Jerusalem Jerusalem Israel
3. Multiple Sclerosis Center, Department of Neurology Hadassah Medical Organization Jerusalem Israel
4. NeuroCure Clinical Research Center Charité‐Universitätsmedizin Berlin Berlin Germany
5. Experimental and Clinical Research Center Max Delbrueck Center for Molecular Medicine and Charité‐Universitätsmedizin Berlin Berlin Germany