title: Treatment by amputation and chemotherapy.
mesh_terms: D000671:Amputation, Surgical; D001500:BCG Vaccine / Q000627:therapeutic use; D001859:Bone Neoplasms / Q000188:drug therapy / Q000601:surgery / Q000628:therapy*; D004317:Doxorubicin / Q000627:therapeutic use; D005500:Follow-Up Studies; D006801:Humans; D002955:Leucovorin / Q000627:therapeutic use; D008727:Methotrexate / Q000627:therapeutic use; D012516:Osteosarcoma / Q000188:drug therapy / Q000601:surgery / Q000628:therapy*
chemical_list: D001500:BCG Vaccine; D004317:Doxorubicin; D002955:Leucovorin; D008727:Methotrexate