[1] Yale Sch Med, New Haven, CT USA
[2] McMaster Univ, Hamilton, ON, Canada
[3] McMaster Univ, Brampton, ON, Canada
[4] Hosp Sick Children, Toronto, ON, Canada
[5] McMaster Childrens Hosp, Hamilton, ON, Canada
[6] Cincinnati Childrens Hosp Med Ctr, Cincinnati, OH 45229 USA
[7] Canadian Blood Serv, Ancaster, ON, Canada
[8] Univ Penn, Dept Med, Perelman Sch Med, Philadelphia, PA 19104 USA
[9] Univ Penn, Dept Pathol & Lab Med, Perelman Sch Med, Philadelphia, PA 19104 USA
[10] Platelet Disorder Support Assoc, Cleveland, OH USA
[11] London Hlth Sci Ctr, London, England
[12] Northwestern Univ, Evanston, IL USA
[13] Joseph Brant Hosp, Burlington, ON, Canada
[14] Saskatchewan Hlth Author, Saskatoon, SK, Canada
[15] Childrens Hosp Corp, Boston, MA USA
[16] Imperial Coll London, Dept Inflammat & Immun, London, England
[17] Heme Call, Telemed Hematol Practice, S Miami, FL USA
[18] Univ Toronto, Toronto, ON, Canada
[19] Univ Ottawa, Fac Med, Ottawa, ON, Canada
[20] Henry Ford Hlth, Dept Surg, Detroit, MI USA
[21] Univ Western Ontario, London, ON, Canada
[22] McMaster Univ, Micheal G DeGroote Ctr Transfus Res, Hamilton, ON, Canada