1. Department of Haematology, University of Cambridge, National Health Service Blood and Transplant, Cambridge, United Kingdom;
2. Medical Research Council Biostatistics Unit, Institute of Public Health, University Forvie Site, Cambridge, United Kingdom;
3. European Bioinformatics Institute, Wellcome Trust Genome Campus, Cambridge, United Kingdom;
4. Structural Studies, Medical Research Council Laboratory of Molecular Biology, Cambridge, United Kingdom;
5. Wellcome Trust/Medical Research Council Building, Cambridge, United Kingdom;
6. Division of Immunity and Infection, Medical Research Council Centre for Immune Regulation, University of Birmingham, Birmingham, United Kingdom;
7. Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Cambridge, United Kingdom;
8. Department of Haematology, Addenbrooke's Hospital, Cambridge University Hospitals National Health Service Foundation Trust, Cambridge, United Kingdom;
9. Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, United Kingdom; and
10. Department of Experimental Immunohaematology, Sanquin Research and Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands