1. Department of Clinical Neurosciences, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
2. Department of Neurology, Colentina Clinical Hospital, Bucharest, Romania
3. Department of Neurology, Queen’s Medical Centre, Nottingham University Hospitals, Nottingham, UK
4. Department of Multiple Sclerosis and Neuroimmunology, CHU Grenoble, Grenoble, France
5. Academic Clinical Neurology, Mental Health and Clinical Neurosciences Academic Unit, School of Medicine, University of Nottingham, Nottingham, UK
6. Department of Neurology, Cooper Neurological Institute, Camden, NJ, USA