1. Department of Experimental Immunohematology and
2. Department of Immunopathology, Sanquin Research and Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands;
3. Department of Bacteriology and Immunology, Norwegian Institute of Public Health, Oslo, Norway;
4. School of Pharmacy, University of Oslo, Oslo, Norway;
5. Biomolecular Mass Spectrometry Unit, Leiden University Medical Center, Leiden, The Netherlands;
6. Thrombocyte and Leukocyte Serology, Sanquin, Amsterdam, The Netherlands;
7. Bristol Institute for Transfusion Sciences, National Health Service Blood and Transplant, Bristol, United Kingdom;
8. Institute of Medical Biology, University of Tromso, Tromso, Norway; and
9. University Hospital of North Norway, Tromso, Norway