1. Faculté de médecine et des sciences de la santé Université de Sherbrooke Sherbrooke Quebec Canada
2. Department of Neurology & Neurosurgery Montreal Neurological Institute, McGill University Montreal Quebec Canada
3. Department of Human Genetics McGill University Montreal Quebec Canada
4. Division of Medical Genetics, Department of Specialized Medicine McGill University Health Center Montreal Quebec Canada
5. Department of Diagnostic Radiology McGill University Montreal Quebec Canada