Affiliations

• ¹ Department of Public Health and Primary Care, University of Cambridge, Cambridge CB1 8RN, UK; NIHR Blood and Transplant Research Unit in Donor Health and Genomics, University of Cambridge, Cambridge CB1 8RN, UK; NHS Blood and Transplant, Cambridge, UK; NHS Blood and Transplant, Oxford, UK; NIHR Cambridge Biomedical Research Centre, Addenbrooke's Hospital, Cambridge, UK; British Heart Foundation Cambridge Centre for Research Excellence, Addenbrooke's Hospital, Cambridge, UK.
• ² Department of Public Health and Primary Care, University of Cambridge, Cambridge CB1 8RN, UK; NIHR Blood and Transplant Research Unit in Donor Health and Genomics, University of Cambridge, Cambridge CB1 8RN, UK; NIHR Cambridge Biomedical Research Centre, Addenbrooke's Hospital, Cambridge, UK; British Heart Foundation Cambridge Centre for Research Excellence, Addenbrooke's Hospital, Cambridge, UK.
• ³ Department of Public Health and Primary Care, University of Cambridge, Cambridge CB1 8RN, UK; NIHR Blood and Transplant Research Unit in Donor Health and Genomics, University of Cambridge, Cambridge CB1 8RN, UK; NHS Blood and Transplant, Cambridge, UK; NHS Blood and Transplant, Oxford, UK; NIHR Oxford Biomedical Research Centre-Haematology Theme and Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK.
• ⁴ Department of Public Health and Primary Care, University of Cambridge, Cambridge CB1 8RN, UK; NIHR Blood and Transplant Research Unit in Donor Health and Genomics, University of Cambridge, Cambridge CB1 8RN, UK; NIHR Cambridge Biomedical Research Centre, Addenbrooke's Hospital, Cambridge, UK; British Heart Foundation Cambridge Centre for Research Excellence, Addenbrooke's Hospital, Cambridge, UK. Electronic address: jd292@medschl.cam.ac.uk.