title: High-dose methotrexat therapy of childhood cancer--observations relating to clinical toxicity.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004334:Drug Administration Schedule; D006801:Humans; D007223:Infant; D002955:Leucovorin / Q000008:administration & dosage; D007938:Leukemia / Q000188:drug therapy*; D008223:Lymphoma / Q000188:drug therapy*; D008727:Methotrexate / Q000008:administration & dosage / Q000627:therapeutic use / Q000633:toxicity*; D009447:Neuroblastoma / Q000188:drug therapy*
chemical_list: D002955:Leucovorin; D008727:Methotrexate