[1] Univ Toronto, Dept Med, Toronto, ON, Canada
[2] Univ Toronto, Dept Lab Med & Pathobiol, Toronto, ON, Canada
[3] Canadian Blood Serv, Ctr Innovat, Toronto, ON, Canada
[4] Lund Univ, Div Hematol & Transfus Med, Dept Lab Med, Lund, Sweden
[5] Off Med Serv, Dept Clin Immunol & Transfus Med, Lab Med, Lund, Sweden
[6] Univ Amsterdam, Acad Med Ctr, Dept Blood Cell Res, Sanquin Res & Landsteiner Lab, Amsterdam, Netherlands
[7] Univ Hlth Network, Lab Med Program, Toronto, ON, Canada
[8] Sunnybrook Hlth Sci Ctr, Dept Clin Pathol, Toronto, ON, Canada
[9] St Michaels Hosp, Dept Lab Med, Toronto, ON, Canada
[10] Inst Univ Cardiol & Pneumol Quebec, Quebec City, PQ, Canada
[11] CHU Quebec, Quebec City, PQ, Canada
[12] Hop Enfant Jesus & St Sacrement, Quebec City, PQ, Canada
[13] Mt Sinai Hosp, Dept Pathol & Lab Med, Toronto, ON, Canada
[14] Canadian Blood Serv, 67 Coll St, Toronto, ON M5G 2M1, Canada
[15] Hosp Sick Children, Pediat Lab Med, Dept Transfus Med, Toronto, ON, Canada
[16] Univ Amsterdam, Acad Med Ctr, Emma Childrens Hosp, Pediat Hematol Immunol Rheumatol & Infect Dis, Amsterdam, Netherlands