1. American University of Beirut Faculty of Medicine, Nehme and Therese Multiple Sclerosis Center, Beirut, Lebanon
2. American University of Beirut Faculty of Medicine, Nehme and Therese Tohme Multiple Sclerosis Center, Beirut, Lebanon
3. American University of Beirut Faculty of Medicine, Department of Biomedical Sciences, Beirut, Lebanon
4. University Tunis El Manar Faculty of Medicine, Laboratory of Research Neurodegenerative and Mental Diseases Tunis, Tunisia