1. Department Immunopathology, Sanquin ResearchUniversity of Amsterdam Amsterdam the Netherlands
2. Landsteiner Laboratory, Academic Medical CentreUniversity of Amsterdam Amsterdam the Netherlands
3. Center for Clinical Transfusion Research, Sanquin ResearchLeiden University Medical Center Leiden the Netherlands
4. Department of Clinical EpidemiologyLeiden University Medical Center Leiden the Netherlands
5. Department of Immunohematology and Blood TransfusionLeiden University Medical Center Leiden the Netherlands