title: "Single"-agent activity of high-dose methotrexate with citrovorum factor rescue.
mesh_terms: D001859:Bone Neoplasms / Q000188:drug therapy*; D004359:Drug Therapy, Combination; D006801:Humans; D002955:Leucovorin / Q000627:therapeutic use*; D008727:Methotrexate / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D009369:Neoplasms / Q000188:drug therapy; D012516:Osteosarcoma / Q000188:drug therapy*; D014750:Vincristine / Q000627:therapeutic use
chemical_list: D014750:Vincristine; D002955:Leucovorin; D008727:Methotrexate