药物阻断食管癌前病变应重视的几个问题河北省肿瘤研究所陈志峰侯浚（指导）在我国恶性肿瘤年死亡率中，食管癌占第二位。自１９７２年我国广大的科技工作者在食管癌高发区现场，对食管上皮增生进行大量系统研究得出两个重要结论［１］：①食管上皮增生是食管癌变过程中的... Several issues that drugs should take to prevent esophageal precancerous lesions Hebei Provincial Cancer Institute Chen Zhifeng Hou Wei (Guided) Esophageal cancer ranks second in the annual mortality rate of malignant tumors in China. Since 1972, China’s vast scientific and technical workers in the high incidence area of ​​esophageal cancer, a large number of systematic studies on esophageal hyperplasia have drawn two important conclusions [1]: 1 esophageal epithelial hyperplasia is the process of esophageal carcinogenesis...