1. Department of Haematology, University of Cambridge,
2. National Institute for Health Research (NIHR) BioResource, Cambridge University Hospitals,
3. National Health Service (NHS) Blood and Transplant, and
4. East Midlands and East of England Genomic Laboratory Hub, Cambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom;
5. Department of Biochemistry, Maastricht University, Maastricht, The Netherlands;
6. Clinical Division of Hematology and Hemostaseology, Department of Medicine I, Medical University of Vienna, Vienna, Austria;
7. Department of Haematology, Cambridge University Hospitals, Cambridge Biomedical Campus, Cambridge, United Kingdom;
8. Centre for Haematology, Imperial College London, London, United Kingdom;
9. MRC Biostatistics Unit, Cambridge Institute of Public Health, University of Cambridge, Cambridge Biomedical Campus, Cambridge, United Kingdom;
10. Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases, Vienna, Austria;
11. CeMM Research Center for Molecular Medicine, Austrian Academy of Sciences, Vienna, Austria;
12. Pediatric Hematology/Oncology Unit, Department of Pediatrics, Shaare Zedek Medical Center, Jerusalem, Israel;
13. Blizard Institute, Queen Mary University London, London, United Kingdom;
14. Department of Cardiovascular Sciences, Center for Molecular and Vascular Biology, KU Leuven, Leuven, Belgium;
15. Department of Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria;
16. Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom;
17. School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom;
18. Central Diagnostic Laboratory, Maastricht University Medical Centre, Maastricht, The Netherlands;
19. Katharine Dormandy Haemophilia Centre and Thrombosis Unit, The Royal Free Hospital, London, United Kingdom; and
20. Department of Haematology, Medical School, University College London, London, United Kingdom