title: Primary osteogenic sarcoma of the skull. Five-year disease-free survival following surgery and high dose methotrexate therapy.
mesh_terms: D005260:Female; D006801:Humans; D008727:Methotrexate / Q000627:therapeutic use*; D012516:Osteosarcoma / Q000188:drug therapy / Q000601:surgery*; D011182:Postoperative Care; D012888:Skull Neoplasms / Q000188:drug therapy / Q000601:surgery*
chemical_list: D008727:Methotrexate