[1] Hamilton Hlth Sci, McMaster Childrens Hosp, Hamilton, ON, Canada
[2] London Hlth Sci, Hematol Oncol, London, ON, Canada
[3] Hosp Sick Children, Toronto, ON M5G 1X8, Canada
[4] Canc Ctr Southeastern Ontario, Kingston, ON, Canada
[5] Hosp Sick Children, Div Haematol Oncol, Toronto, ON M5G 1X8, Canada
[6] CancerCare Manitoba, Hematol Oncol, Winnipeg, MB, Canada
[7] Montreal Childrens Hosp, Montreal, PQ, Canada
[8] Childrens Hosp Eastern Ontario, Ottawa, ON, Canada
[9] Alberta Childrens Prov Gen Hosp, Hematol Oncol Transplant Program, Calgary, AB, Canada
[10] British Columbia Childrens Hosp, Vancouver, BC, Canada
[11] Hosp Univ Quebec, Pediat Hematol Oncol Ctr, Quebec City, PQ, Canada
[12] Univ Alberta Hosp, Stollery Childrens Hosp, Edmonton, AB, Canada
[13] CHU Sherbrooke, Sherbrooke, PQ, Canada
[14] McMaster Univ, Dept Clin Epidemiol & Biostat, Populat Genom Program, Hamilton, ON L8S 4L8, Canada