目前,癌症的发病率和死亡率增长极为迅速,其中增长最快的是肺癌。据广东省1970～1972年三年恶性肿瘤死亡病例回顾调查结果,广州市是我省肺癌高发区,肺癌死亡专率为17.3/10万,居恶性肿瘤的首位。近年来广州市肺癌死亡专率有明显上升,1980年肺癌死亡 At present, the incidence of cancer and the rapid increase in mortality rates, of which the fastest growing lung cancer. According to the retrospective survey of deaths from malignant tumors in Guangdong Province from 1970 to 1972, Guangzhou City is the highest incidence of lung cancer in our province. The death rate of lung cancer was 17.3 / 100,000, ranking first in malignant tumors. In recent years, the mortality rate of lung cancer in Guangzhou has increased significantly, and in 1980 lung cancer died