1. Haematology Haga Teaching Hospital The Hague The Netherlands
2. TRIP Haemovigilance and Biovigilance Office Leiden The Netherlands
3. Haematology Leiden University Medical Centre Leiden The Netherlands
4. Surgery Erasmus Medical Centre Rotterdam The Netherlands
5. CCTR Sanquin Blood Supply Amsterdam The Netherlands
6. Haematology University Medical Centre Groningen Groningen The Netherlands