1. Division of Hematology/Oncology; CHU Sainte-Justine; Montréal Canada
2. Division of Hematology/Oncology; Research Institute; Hospital for Sick Children; University of Toronto; Toronto Canada
3. Department of Epidemiology, Biostatistics and Occupational Health; Faculty of Medicine; McGill University; Montreal Canada
4. Department of Pathology and Molecular Medicine; Queen's University; Kingston Canada
5. Department of Nursing; Hospital for Sick Children; Toronto Canada
6. Health Sciences North; Sudbury Canada
7. Division of Hematology; Oncology St-Michael's Hospital; Toronto Canada