title: Central nervous system prophylaxis in leukaemia.
mesh_terms: D000367:Age Factors; D002490:Central Nervous System / Q000187:drug effects*; D006801:Humans; D007938:Leukemia / Q000188:drug therapy*; D008727:Methotrexate / Q000494:pharmacology* / Q000627:therapeutic use
chemical_list: D008727:Methotrexate