1. Research Institute, The Hospital for Sick Children, University of Toronto, Toronto, Toronto, Canada
2. Neuroimmunology Unit and Experimental Therapeutics Program, Canada
3. McConnell Brain Imaging Center, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
4. Department of Genetics and Division of Neurology, University of British Columbia, BC, General Hospital, Victoria, British Columbia, Canada
5. Department of Internal Medicine, Winnipeg Health Sciences Center, University of Manitoba, Winnipeg, Manitoba, Canada
6. Department of Paediatrics, Division of Neurology, The Hospital for Sick Children, University of Toronto, Toronto, Optic Neuritis, Canada