1. TRIP (Transfusion and Transplantation Reactions in Patients) Hemovigilance and Biovigilance Office LeidenThe Netherlands
2. Medlon‐Medisch Spectrum Twente EnschedeThe Netherlands
3. Department of Hematology Leiden University Medical Center LeidenThe Netherlands
4. Knowledge Institute of Medical Specialists UtrechtThe Netherlands
5. Elkerliek Ziekenhuis HelmondThe Netherlands
6. Haga Teaching Hospital The HagueThe Netherlands
7. Department of Hematology University Medical Center UMCG Groningen The Netherlands