1. Centre for Clinical Transfusion Research; Sanquin Research
2. Jon J. Van Rood Centre for Clinical Transfusion Research; Sanquin-Leiden University Medical Centre; Leiden The Netherlands
3. LabWest; Haga Teaching Hospital; The Hague The Netherlands
4. Department of Haematology; Erasmus Medical Centre; Rotterdam The Netherlands
5. Department of Anesthesiology; Albert Schweitzer Hospital; Dordrecht The Netherlands
6. Department of Immuno-Hematology and Blood Transfusion; Leiden University Medical Centre; Leiden The Netherlands