1. Pediatric Department, Sickle Cell Disease Referral Center Centre Hospitalier Intercommunal de Créteil Créteil France
2. Pediatric Department Dijon University Hospital Dijon France
3. Paris XII University, IMRB‐GRC GEMINI Créteil France
4. Paris XII University, INSERM, IMRB Créteil France
5. Pediatric Surgery Department Centre Hospitalier Intercommunal de Créteil Créteil France
6. Laboratory of Hematology Centre Hospitalier Intercommunal de Créteil Créteil France
7. BIOSSEC Clinical Biostatistics Paris France
8. Genetics Department Groupe Hospitalo‐Universitaire Henri Mondor, INSERM U955, IMRB, Team 2, Paris XII University Créteil France
9. INSERM U955, IMRB, Paris XII University Créteil France