1. Department of Paediatric Haematology; Hôpital des Enfants; Toulouse France
2. INSERM U1037; CRCT; Toulouse France
3. Department of Paediatric Haematology; Centre de Référence National des Cytopénies Auto-immunes de l'Enfant (CEREVANCE); Groupe Hospitalier Pellegrin; Bordeaux France
4. Department of Paediatric Haematology; Le Kremlin Bicetre; Paris France
5. Department of Paediatric Haematology; AP-HP; Hôpital Armand Trousseau; GHUEP; Paris France
6. Department of Paediatric Haematology; Centre Hospitalier; Reims France
7. Department of Paediatric Haematology; Hôpital de Hautepierre; Strasbourg France
8. GRC 11 My-Pac; UPMC; Université Paris 6; Paris France