Author information:
(1)Program in Genetics and Genome Biology, Research Institute, The Hospital for 
Sick Children, Toronto, Canada.
(2)Division of Haematology/Oncology, CancerCare Manitoba, Winnipeg, Canada.
(3)Division of Haematology/Oncology, Children's Hospital of Eastern Ontario, 
Ottawa, Canada.
(4)Division of Haematology/Oncology, IWK Health Centre, Halifax, Canada.
(5)Division of Haematology/Oncology, CHU Sainte Justine, Montreal, Canada.
(6)Division of Haematology/Oncology, Alberta Children's Hospital, Calgary, 
Canada.
(7)Division of Haematology/Oncology, McMaster Children's Hospital, Hamilton, 
Canada.
(8)Division of Haematology/Oncology, Montreal Children's Hospital, Montreal, 
Canada.
(9)Division of Haematology/Oncology, British Columbia Children's Hospital, 
Vancouver, Canada.
(10)Division of Haematology/Oncology, University of Saskatchewan, Saskatoon, 
Canada.
(11)Division of Haematology/Oncology, Queen's University, Kingston, Canada.
(12)Division of Haematology/Oncology, Janeway Child Health Centre, St. John's, 
Canada.
(13)Division of Haematology/Oncology, Children's Hospital of Western Ontario, 
London, Canada.
(14)Department of Haematology and Internal Medicine, Princess Margaret Hospital, 
Toronto, Canada.
(15)Division of Haematology/Oncology, University of Alberta Health Sciences 
Centre, Edmonton, Canada.
(16)Division of Haematology/Oncology, Centre Y Sante L'Estrie-Fleur, Sherbrooke, 
Canada.
(17)Division of Haematology/Oncology, Centre Hospitalier de l'Université Laval, 
Quebec City, Canada.
(18)Division of Haematology/Oncology, King Faisal Specialist Hospital and 
Research Center, Riyadh, Saudi Arabia.
(19)The Marrow Failure and Myelodysplasia Program, Haematology Section, Division 
of Haematology/Oncology, Department of Paediatrics, The Hospital for Sick 
Children, Toronto, Canada.
(20)Program in Child Health and Evaluative Medicine, Research Institute, The 
Hospital for Sick Children, Toronto, Canada.
(21)Lymphoma Leukemia Section, Division of Haematology/Oncology, Department of 
Paediatrics, The Hospital for Sick Children, Toronto, Canada.
(22)Institute of Medical Sciences, University of Toronto, Toronto, Canada.