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近年来,随着生物化学、免疫学、分子生物学和现代物理学等生命科学的发展,人们对肿瘤的认识越来越深入。许多研究表明癌变是一个很长的复杂过程。胃癌的发病率呈逐年上升趋势。胃癌是常见的消化道恶性肿瘤,在我国其发病率居各类肿瘤首位。每年约有17万人死于胃癌,是一种严重威胁人类
In recent years, with the development of life sciences such as biochemistry, immunology, molecular biology and modern physics, people have become more aware of cancer. Many studies have shown that canceration is a long and complicated process. The incidence of gastric cancer is increasing year by year. Gastric cancer is a common malignant tumor of the digestive tract. Its incidence rate ranks first in all types of cancer in China. About 170,000 people die each year from stomach cancer, a serious threat to humans