1. Hematology and Oncology Pediatric Unit Haemophilia CRC Hospital of Saint‐Etienne Saint‐Etienne France
2. INSERM CIC 1408 Laboratory of Hematology Saint‐Etienne France
3. Inserm U1059, Sainbiose Dysfonction Vasculaire et Hémostase Université de Lyon Saint‐Etienne France
4. Biology Laboratory University Hospital of Saint‐Etienne Saint‐Etienne France
5. EA SNA‐EPIS 4607 Université Jean Monnet Saint‐Etienne France