1. Department of Public Health, Faculty of Health Sciences; Ben-Gurion University of the Negev; Beer Sheva Israel
2. Department of Psychology and Hematology/Oncology Program; SickKids Hospital; Toronto ON Canada
3. Dalla Lana School of Public Health; University of Toronto; Toronto ON Canada
4. Division of Haematology/Oncology; McMaster Children's Hospital/McMaster University; Hamilton ON Canada
5. Children's Hospital; Cantonal Hospital; Lucerne Switzerland
6. Division of Haematology/Oncology, NeuroOncology Program; SickKids Hospital; Toronto ON Canada
7. University of Toronto; Toronto ON Canada