1. University of Oxford; Weatherall Institute of Molecular Medicine; John Radcliffe Hospital Headley Way Oxford UK OX3 9DU
2. NHS Blood and Transplant; Systematic Review Initiative; John Radcliffe Hospital Oxford UK OX3 9BQ
3. Oxford University Hospitals Trust and the University of Oxford; Oxford Kidney Unit and Nuffield Department of Medicine; Cornall Group, Henry Wellcome Building for Molecular Physiology Roosevelt Drive Oxford UK OX3 7BN
4. University of Oxford; Centre for Statistics in Medicine; Botnar Research Centre Windmill Road Oxford UK OX3 7LD
5. University of Oxford; Oxford Clinical Trials Research Unit; Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences Windmill Road Oxford Oxfordshire UK OX3 7LD
6. NHS Blood and Transplant; Haematology/Transfusion Medicine; Level 2, John Radcliffe Hospital Headington Oxford UK OX3 9BQ