Assessment of intrathecal therapy in the treatment of familial haemophagocytic lymphohistiocytosis. - Zivkovic, Katarina; Bergsten, Elisabet; Aricó, Maurizio; Astigarraga, Itziar; Ishii, Eiichi; Ladisch, Stephan; Lehmberg, Kai; Minkov, Milen; Nanduri, Vasanta; Henter, Jan‐Inge (British Journal of Haematology, 2026)