1. Hematology-Oncology Department, Sainte-Justine University Hospital Center, Montreal, QC H3T 1C5, Canada
2. Psycho-Oncology Center (CPO), Sainte-Justine University Hospital Research Center, Montreal, QC H3T 1C5, Canada
3. Department of Pediatrics, Université de Montréal, Montreal, QC H3T 1C5, Canada
4. Department of Psychology, Université de Montréal, Montreal, QC H2V 2S9, Canada
5. CHU Sainte-Justine Research Centre, Montreal, QC H3T 1C5, Canada