1. NHS Blood and Transplant; Cambridge UK
2. Department of Haematology; University of Cambridge; Cambridge UK
3. Pragmatic Clinical Trials Unit; Queen Mary University of London; London UK
4. Institute for Cardiovascular and Metabolic Research; University of Reading; Reading UK
5. Institute of Inflammation and Ageing; Queen Elizabeth Hospital; University of Birmingham; Birmingham UK
6. Department of Cardiovascular Sciences; University of Leicester; Leicester UK
7. NIHR Cardiovascular Biomedical Research Unit; Glenfield Hospital; Leicester UK
8. Wellcome Trust Sanger Institute; Cambridge UK