1. Hospital Pharmacy‐Clinical Pharmacology Amsterdam University Medical Centers Amsterdam The Netherlands
2. Department of Pediatric Hematology and Oncology, Erasmus MC Sophia Children's Hospital University Medical Center Rotterdam Rotterdam The Netherlands
3. Department of Hematology, Erasmus MC University Medical Center Rotterdam Rotterdam The Netherlands
4. Amsterdam UMC University of Amsterdam, Emma Children's Hospital, Pediatric Hematology Amsterdam The Netherlands
5. Vascular Medicine, Amsterdam UMC University of Amsterdam Amsterdam The Netherlands
6. Amsterdam Cardiovascular Sciences Pulmonary Hypertension & Thrombosis Amsterdam The Netherlands
7. Haemophilia Comprehensive Care Centre Great Ormond Street Hospital for Children NHS Foundation Trust London UK
8. Arthur Bloom Haemophilia Centre, School of Medicine Cardiff University Hospital Cardiff UK
9. Department of Haematology Glasgow Royal Infirmary Glasgow UK
10. Oxford Haemophilia and Thrombosis Centre and Oxford NIHR BRC Nuffield Orthopaedic Hospital Oxford UK
11. Department of Paediatric Haematology Sheffield Children's NHS Foundation Trust Sheffield UK
12. Katharine Dormandy Haemophilia Centre and Thrombosis Unit Royal Free London NHS Foundation Trust London UK