在世界范围内肺癌的发病率呈上升趋势,目前以手术和放化疗为主的综合疗法是治疗的主要手段。由于化疗可对造血、神经、消化等多系统造成损害从而部分影响了疗效,不良反应较轻的靶向治疗成为近年来内科治疗的研究热点。应该何时选用靶向治疗;与化疗同时 The incidence of lung cancer in the world is on the rise. At present, the comprehensive treatment based on surgery and radiotherapy and chemotherapy is the main treatment. As chemotherapy can hematopoietic, neurological, digestive and other damage caused by the system partially affect the efficacy of adverse reactions, less targeted therapy has become the focus of medical treatment in recent years. When should I choose targeted therapy; and chemotherapy at the same time