1. NHS Blood and Transplant; Haematology/Transfusion Medicine; Level 2, John Radcliffe Hospital Headington Oxford UK OX3 9BQ
2. Oxford University Hospitals NHS Foundation Trust and University of Oxford; National Institute for Health Research (NIHR) Oxford Biomedical Research Centre; John Radcliffe Hospital, Headley Way Headington Oxford UK OX3 9BQ
3. University of Oxford; Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS); Botnar Research Centre, Windmill Road Oxford Oxfordshire UK OX3 7LD
4. NHS Blood and Transplant; Systematic Review Initiative; John Radcliffe Hospital Oxford UK OX3 9BQ
5. University of Oxford; Centre for Statistics in Medicine; Botnar Research Centre Windmill Road Oxford UK OX3 7LD
6. NHS Blood and Transplant; North Bristol Park Northway, Filton Bristol UK BS34 7QH