Dilemma in cancer treatment.
D001859:Bone Neoplasms / Q000188:drug therapy*; D004359:Drug Therapy, Combination; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis / Q000556:secondary* / Q000601:surgery; D009362:Neoplasm Metastasis; D012516:Osteosarcoma / Q000188:drug therapy* / Q000601:surgery; D011379:Prognosis