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肺癌对人类健康的危害日益严重。多年来肺癌的发病率与死亡率在全球范围内呈逐年上升的趋势。在我国肺癌的死亡率位于肿瘤死因的第三位。探讨肺癌的病因已成为国际上的主要课题。随着分子生物学的进展，在肺癌发展过程中逐步发现了多种异常的癌基因及其蛋白的异常表达。通过检
Lung cancer is increasingly harmful to human health. For many years, the incidence and mortality of lung cancer have been increasing year by year on a global scale. The mortality rate of lung cancer in China is the third leading cause of cancer death. Exploring the cause of lung cancer has become a major topic in the world. With the development of molecular biology, a variety of abnormal expressions of oncogenes and their proteins have been gradually found during the development of lung cancer. Pass inspection