1. NHS Blood and Transplant; Haematology/Transfusion Medicine; Level 2, John Radcliffe Hospital Headington Oxford UK OX3 9BQ
2. University of Oxford; Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS); Botnar Research Centre, Windmill Road Oxford Oxfordshire UK OX3 7LD
3. University of Oxford; Centre for Statistics in Medicine; Botnar Research Centre Windmill Road Oxford UK OX3 7LD
4. Caribbean Institute for Health Research; Chronic Disease Research Centre; The University of the West Indies Jemotts Lane Bridgetown Barbados BB11115
5. NHS Blood and Transplant; Colindale Avenue London UK NW9 5BG