1. Psychosocial Department, Emma Children’s Hospital, Amsterdam UMC University of Amsterdam Amsterdam The Netherlands
2. Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC University of Amsterdam Amsterdam The Netherlands
3. Department of Hematology, Hemophilia Comprehensive Care Treatment Center Erasmus University Medical Center Rotterdam The Netherlands
4. Department of Internal Medicine, Section Thrombosis and Hemostasis Leiden University Medical Center Leiden The Netherlands
5. Department of Pediatric‐Hematology and Hemophilia Comprehensive Care Treatment Center, Emma Children’s Hospital, Amsterdam UMC University of Amsterdam Amsterdam The Netherlands