1. Canadian Blood Services University of Alberta 8249 114 St. NWEdmonton AB T6G 2R8Canada
2. Laboratory Medicine and Pathology Royal Alexandra Hospital 10240 Kingsway AvenueEdmonton AB T5H 3V9Canada
3. Department of Hemotherapy and Hemostasis Hospital Clinic Villaroel 170Barcelona 08036Spain
4. Department of Laboratory Hematology (Transfusion Medicine) University Health Network and Affiliated Hospitals University of Toronto 306 ‐ 200 Elizabeth StreetToronto ON M5G 2C4Canada