title: Therapy of osteosarcoma and Ewing's sarcoma.
mesh_terms: D000671:Amputation, Surgical; D001859:Bone Neoplasms / Q000628:therapy*; D006801:Humans; D012516:Osteosarcoma / Q000628:therapy*; D012189:Retrospective Studies; D012512:Sarcoma, Ewing / Q000628:therapy*