1. Montreal Neurological Institute, McGill University, Montreal, Canada
2. Department of Epidemiology and Statistics, McGill University, Montreal, Canada
3. Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Canada
4. Department of Neurology, McGill University Health Center, Montreal, Canada
5. Department of Pediatrics, McGill University, Montreal, Canada
6. Office des Personnes Handicapées du Québec (OPHQ), Drummondville, Québec, Canada
7. School of Physical and Occupational Therapy, McGill University, Montreal, Canada