1. Hospital Pharmacy‐Clinical Pharmacology Amsterdam University Medical Centers Amsterdam the Netherlands
2. Great Ormond Street Haemophilia Centre Great Ormond Street Hospital for Children NHS Trust London UK
3. Department of Pediatric Hematology Erasmus University Medical Center, Sophia Children's Hospital Rotterdam Rotterdam the Netherlands
4. Katharine Dormandy Haemophilia Centre and Thrombosis Unit Royal Free London NHS Foundation Trust London UK
5. Netherlands Hemophilia Patient Society (NVHP) Nijkerk the Netherlands
6. The Royal London Hospital Haemophilia Centre Barts and The London School of Medicine and Dentistry, QMUL London UK
7. Department of Hematology Radboud University Medical Center Nijmegen the Netherlands
8. Department of Thrombosis and Hemostasis Leiden University Medical Center Leiden the Netherlands
9. University of Groningen, Department of Hematology University Medical Center Groningen Groningen the Netherlands
10. Department of Pediatric Hematology Amsterdam University Medical Center Amsterdam the Netherlands
11. Department of Hematology Erasmus University Medical Center Rotterdam Rotterdam the Netherlands