title: Osteosarcoma.
mesh_terms: D000671:Amputation, Surgical; D001859:Bone Neoplasms / Q000401:mortality / Q000601:surgery*; D002986:Clinical Trials as Topic; D006801:Humans; D012516:Osteosarcoma / Q000401:mortality / Q000601:surgery*; D011379:Prognosis