1. 1Department of Hematology, Hagaziekenhuis, The Hague, The Netherlands
2. 2Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
3. 3Sanquin Diagnostics, Amsterdam, The Netherlands
4. 4Department of Clinical Transfusion Research, Sanquin Research, Amsterdam, The Netherlands
5. 5Department of Hematology, University Medical Center Groningen, Groningen, The Netherlands
6. 6Sanquin Transfusion Services, Amsterdam, The Netherlands
7. 7Department of Experimental Immunohematology, Landsteiner Laboratory, Amsterdam University Medical Center, Sanquin Research, University of Amsterdam, Amsterdam, The Netherlands