[1] Sinai Hlth Syst, Mt Sinai Hosp, Lunenfeld Tanenbaum Res Inst, Toronto, ON, Canada
[2] Mt Sinai Hosp, Lunenfeld Res Inst, Toronto, ON, Canada
[3] Univ Toronto, Dalla Lana Sch Publ Hlth, Toronto, ON, Canada
[4] Abbott Labs, Diagnost Div, Chicago, IL USA
[5] Sci Affairs, Abbott Transfus Med, Chicago, IL USA
[6] Canadian Blood Serv, Edmonton, AB, Canada