Affiliation: | 1. Department of Pediatrics, Division of Hematology/Oncology, The Hospital for Sick Children, University of Toronto, Toronto;2. Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton;3. Department of Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto;4. Departments of Pediatrics, Health Policy Management and Evaluation and the Dalla Lana School of Public Health, Division of Pediatric Rheumatology, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada |