University of Montreal - Department of Neurosciences, Université Laval - Centre de Recherche du CHU de Québec-Université Laval, Pennsylvania State University - Penn State, Pennsylvania State University - Penn State, University of Montreal - CHU Sainte-Justine Research Center, CHU Sainte-Justine, Universite de Montreal, CHU Sainte-Justine, Universite de Montreal, The Hospital for Sick Children - Division of Haematology / Oncology, The Hospital for Sick Children - Division of Pathology, CHU Sainte-Justine, Universite de Montreal, CHU Sainte-Justine, Universite de Montreal, University of Montreal - Department of Psychology, University of Montreal - CHU Sainte-Justine Research Center, University of Montreal - Department of Psychology, CHU de Quebec-Universite Laval, CHU de Quebec-Universite Laval, University of Montreal - Department of Psychology, University of Montreal - Department of Psychology, CHU Sainte-Justine, Universite de Montreal, The Hospital for Sick Children - Division of Hematology/Oncology, Université de Sherbrooke - Centre Hospitalier Universitaire de Sherbrooke, Montreal Children's Hospital, CHU de Quebec-Universite Laval, The Hospital for Sick Children - Division of Haematology / Oncology, The Hospital for Sick Children - Division of Haematology / Oncology, University of Montreal - Centre Hospitalier Universitaire (CHU) Sainte-Justine, University of Calgary - Alberta Children's Hospital, University of British Columbia (UBC), CHU Sainte-Justine, Universite de Montreal, IWK Health Centre, IWK Health Centre, McGill University - Department of Human Genetics, University of Montreal - CHU Sainte-Justine Research Center and CHU Sainte-Justine, Universite de Montreal - Division of Child Neurology, Department of Pediatrics