Because metastatic breast cancer is, with very rare exceptions, an incurable disease, the art of medicine is to provide the patient with the care most likely to prolong life while simultaneously maintaining quality of life.

• 因为转移性乳腺癌是不可治愈的疾病（极少数病例外）药物治疗的目的在于延长患者的生命同时维持其生活质量。