肺癌是目前全世界发病率和死亡率最高、预后最差的恶性肿瘤之一,严重影响着人类的健康和生存质量〔1〕。近年来的研究显示,男性肺癌的发病率和死亡率正缓慢下降,而女性肺癌的发病率和死亡率却在呈上升趋势〔2〕。肺癌已成为目前和未来最重要的公 Lung cancer is currently one of the most malignant tumors with the highest morbidity and mortality in the world and the worst prognosis, which seriously affects human health and quality of life [1]. In recent years, studies have shown that the incidence of male lung cancer and mortality are slowly declining, while the incidence of female lung cancer and mortality are on the rise [2]. Lung cancer has become the most important present and future public