[1] McGill Univ, Dept Human Genet, Montreal, PQ, Canada
[2] McGill Univ, Lady Davis Inst, Segal Canc Ctr, Jewish Gen Hosp, Montreal, PQ, Canada
[3] McGill Univ, Div Hematol Oncol, Montreal Childrens Hosp, Dept Pediat, Montreal, PQ, Canada
[4] Univ Toronto, Hosp Sick Children, Div Hematol Oncol, Toronto, ON, Canada
[5] Univ Toronto, Dept Pediat, Toronto, ON, Canada
[6] Univ Sao Paulo, Ribeirao Preto Med Sch, Hosp Clin, Dept Pediat, Sao Paulo, Brazil
[7] Emory Univ Hosp, Dept Pathol & Lab Med, 1364 Clifton Rd NE, Atlanta, GA 30322 USA
[8] Hosp Sick Children, Div Pathol, Toronto, ON, Canada
[9] Belfast Hlth & Social Care Trust, Dept Pathol, Belfast, Antrim, North Ireland
[10] Sidra Med, Dept Pathol, Doha, Qatar
[11] Univ Toronto, Div Pathol, Hosp Sick Children, Toronto, ON, Canada
[12] Univ Toronto, Dept Lab Med & Pathobiol, Toronto, ON, Canada
[13] McGill Univ, Program Canc Genet, Dept Oncol, Montreal, PQ, Canada
[14] Jewish Gen Hosp, Lady Davis Inst, Segal Canc Ctr, Montreal, PQ, Canada