Department of Oncology, Division of Malignant Hematology, Juravinski Cancer Centre, McMaster University, Hamilton, Ontario, Canada. Department of Medicine, McMaster Centre for Transfusion Research, McMaster University, Hamilton, Ontario, Canada. Department of Product and Process Development, Sanquin Blood Bank, Amsterdam, the Netherlands. Department of Hematology, Haga Teaching Hospital, The Hague, the Netherlands. Department of Medicine, Division of Hematology, McMaster University, Hamilton, Ontario, Canada. Canadian Blood Services, Hamilton, Ontario, Canada.