1. Oxford Haemophilia and Thrombosis Centre Oxford University Hospitals NHS Foundation Trust Oxford UK
2. Royal London Hospital Haemophilia Centre Barts Health NHS Trust London UK
3. Centre for Haematology, Department of Immunology and Inflammation Imperial College London London UK
4. Department of Haematology Imperial College Healthcare NHS Trust London UK
5. Department of Coagulation Royal Hallamshire Hospital NHS Foundation Trust Sheffield UK
6. Department of Haematological Medicine Kings College Hospital NHS Foundation Trust London UK
7. Department of Haematology Buckinghamshire NHS Trust Amersham UK
8. Haemophilia and Thrombosis Unit Royal Free London NHS Foundation Trust London UK