1. Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, and
2. Emma Children’s Hospital, Academic Medical Center, University of Amsterdam, The Netherlands;
3. Department of Thrombo/Leukocyte Serology, and
4. Department of Erythrocyte Serology, Sanquin Diagnostics, Amsterdam, The Netherlands;
5. Center for Molecular Medicine, Department of Vascular Matrix Biology, Excellence Cluster Cardio-Pulmonary System, Frankfurt University Hospital, Frankfurt am Main, Germany;
6. Department of Pediatric Oncology/Hematology, Otto-Heubner-Center for Pediatric and Adolescent Medicine, Charité-Universitätsmedizin, Berlin, Germany; and
7. Department of Pediatric Hematology/Oncology, IRCCS Bambino Gesù Children's Hospital, Rome, Italy.