1. St George’s University of London and Kingston University, London, UK
2. Katharine Dormandy Haemophilia and Thrombosis Centre, Royal Free Hospital, London, UK
3. East Kent Hospitals University NHS Foundation Trust, Canterbury, UK
4. Centre for Outcomes and Experience Research in Child Health, Illness and Disability (ORCHID) Research Unit, Great Ormond Street Hospital for Children NHS Trust, London, UK
5. Haemnet, London, UK