1. Department of Medical Genetics; Montreal Children's Hospital, Montréal; Quebéc Canada
2. McGill University Health Centre, Montreal Children's Hospital, Montréal; Québec Canada
3. Department of Neurology and Neurosurgery; Montreal Children's Hospital, Montréal; Québec Canada
4. Department of Pediatrics; Gifu University Graduate School of Medicine; Gifu Japan
5. Department of Medical Imaging; CHUM, Université de Montréal, Montréal; Québec Canada
6. Division of Medical Genetics, Department of Pediatrics, Université de Montréal, Montréal; Québec Canada
7. CHU Sainte-Justine, Université de Montréal, Montréal; Québec Canada
8. André Barbeau Movement Disorders Unit, CHUM, Université de Montréal, Montréal; Québec Canada