1. Royal London Hospital Haemophilia Centre, Barts and The London School of Medicine and Dentistry, QMUL London UK
2. Evelina London Children's Hospital London UK
3. Oxford Haemophilia Centre Oxford University Trust Oxford UK
4. Newcastle Haemophilia Comprehensive Care Centre The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
5. Cardiff Haemophilia Centre University of Wales Cardiff Wales UK
6. Manchester Haemophilia Centre Manchester UK
7. National Haemophilia Database United Kingdom Haemophilia centre doctors’ organisation (UKHCDO) Manchester UK
8. Great Ormond Street Hospital for Children NHS Foundation Trust, London UK
9. Sheffield Haemophilia & Thrombosis Centre Royal Hallamshire hospital Sheffield UK
10. Birmingham Children's Hospital NHS Trust, Birmingham UK
11. Sheffield Children's NHS Foundation Trust, Sheffield UK
12. University Hospitals Birmingham NHS Foundation Trust, Birmingham UK
13. Leeds Teaching Hospital NHS Trust, Leeds UK
14. Katharine Dormandy Haemophilia and Thrombosis Centre Royal Free Hospital NHS Foundation Trust, London UK
15. Bristol Royal Hospital for Children University Hospitals Bristol NHS Foundation Trust Bristol UK
16. Royal Hospital for Children Glasgow UK