Successful management of familial hemophagocytic lymphohistiocytosis by the JAK 1/2 inhibitor ruxolitinib. Issue 6 (10th March 2021) - Marois, Louis; Touzot, Fabien; Haddad, Elie; Fernandez, Isabel; Morin, Marie‐Paule; De Bruycker, Jean Jacques; Duval, Michel; Cellot, Sonia; Teira, Pierre; Bittencourt, Henrique; Decaluwe, Hélène