迄今为止肺癌的疗效仍不乐观,所以研究者把研究的重点放在肺癌的预防上。研究表明,吸烟是最主要的危险因素,肺癌患者中90%有吸烟史,戒烟己成为主要的预防措施。尽管研究表明戒烟可以降低肺癌发生的危险性,但是与不吸烟人群相比,戒烟者仍具有较高的危险性,50%的非小细胞肺癌(non So far, the efficacy of lung cancer is still not optimistic, so the researchers focused their research on the prevention of lung cancer. Studies have shown that smoking is the most important risk factor. Smoking is a common cause of smoking in 90% of lung cancer patients and smoking cessation has become a major preventive measure. Although studies have shown that quitting smoking can reduce the risk of lung cancer, quitting smokers are still at a higher risk than non-smokers, and 50% of non-small cell lung cancers