1. Neuro‐immunology Unit, Montreal Neurological Institute and Department of Neurology and Neurosurgery McGill University Montreal Canada
2. Department of Neurology and Neurosurgery, Montreal Neurological Institute McGill University Montreal Canada
3. Department of Neurosciences Centre de Recherche du Centre Hospitalier de l'Université deMontréal Montreal QC Canada
4. Department of Pediatric Neurosurgery Montreal Children's Hospital Montreal Canada
5. Division of Pediatric Neurology Montreal Children's Hospital Montreal Canada
6. The Orthopedic Research Laboratory, Department of Surgery McGill University Montreal Canada
7. McGill Scoliosis and Spine Group, Department of Surgery McGill University Montreal Canada
8. Departments of Pathology, Neurology and Neurosurgery McGill University Montreal QC Canada