1. Pediatric Hematology and Immunology Department Robert‐Debré University Hospital (APHP and Université de Paris) Paris France
2. Hematology Laboratory Robert‐Debré University Hospital (APHP and Université de Paris) Paris France
3. Genetic Department Robert‐Debré University Hospital (APHP and Université de Paris) Paris France
4. Hematology Laboratory Saint‐Louis Hospital, Assistance Publique‐Hôpitaux de Paris (APHP) Paris France
5. Hematopathology Department Robert‐Debré University Hospital (APHP and Université de Paris) Paris France
6. Department of Medical Genetics Pitié‐Salpêtrière Hospital, Assistance Publique‐Hôpitaux de Paris (AP‐HP), Sorbonne Université Paris France