1. Department of Oncology, University of Calgary, Calgary, Alberta, Canada
2. Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, Canada
3. Department of Epidemiology and Cancer Control, St Jude Children’s Research Hospital, Memphis, Tennessee
4. Department of Pediatric Hematology/Oncology, MemorialCare Miller Children’s & Women’s Hospital Long Beach,Long Beach, California
5. Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
6. Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
7. Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
8. Department of Medicine, Duke University, Durham, North Carolina
9. Department of Oncology, St Jude Children’s Research Hospital, Memphis, Tennessee
10. Department of Psychology, St Jude Children’s Research Hospital, Memphis, Tennessee