Agranulocytosis in patients with Diamond‐Blackfan anaemia (DBA) treated with deferiprone for post‐transfusion iron overload: A retrospective study of the French DBA cohort - Lecornec, Nicolas; Castex, Marie‐Pierre; Réguerre, Yves; Moreau, Philippe; Marie, Isabelle; Garçon, Loïc; Da Costa, Lydie; Leblanc, Thierry (British journal of haematology, 2022)