1. NHS Blood and Transplant Department of Haematology Imperial College London London UK
2. NHS Blood and Transplant Department of Haematology Oxford University Hospitals NHS Foundation Trust; Radcliffe Department of Medicine University of Oxfordand NIHR Oxford Biomedical Research Centre (Haematology) Oxford UK
3. Department of Neonatology Manchester University NHS Foundation TrustThe University of Manchester, Faculty of Medical and Human Sciences Manchester UK
4. Midland Regional Hospital MullingarHealth Service Executive Ireland UK
5. JB Transfusion (Laboratory Consultancy Services) Ltd London UK
6. Department of Haematology Royal Hospital for Children Glasgow UK
7. The University of Manchester Faculty of Biology, Medicine and Health Serious Hazards of Transfusion Office Manchester Blood Centre Manchester UK