1. Department of Cardiovascular Science, University of Sheffield Medical School, University of Sheffield, Sheffield, United Kingdom;
2. Centre for Cardiovascular Sciences, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom;
3. Division of Genetics and Molecular Medicine, King’s College London School of Medicine, Guy’s Hospital, London, United Kingdom;
4. Department of Coagulation, Royal Hallamshire Hospital, Sheffield, United Kingdom;
5. Department of Haematology, Royal Victoria Infirmary, Newcastle Upon Tyne, United Kingdom;
6. Department of Haematology, Birmingham Children’s Hospital, Birmingham, United Kingdom;
7. Adult Haemophilia Centre, Queen Elizabeth Hospital, Birmingham, United Kingdom; and
8. Arthur Bloom Haemophilia Centre, School of Medicine, Cardiff University, Cardiff, United Kingdom