1. Department of Haematology Imperial College Healthcare NHS Trust London UK
2. Centre for Haematology Imperial College London London UK
3. Katherine Dormandy Haemophilia Centre and Thrombosis Unit Royal Free London NHS Foundation Trust London UK
4. Haemophilia and Thrombosis Centre University Hospital of Wales Cardiff UK
5. Department of Haematology Royal Infirmary of Edinburgh Edinburgh UK
6. Centre for Clinical Haematology University Hospitals Birmingham NHS Foundation Trust Birmingham UK