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幽门螺杆菌（Ｈｐ）与胃癌发生的关系日益受到广泛的重视。目前随着对Ｈｐ研究的逐步深入，有关Ｈｐ细胞毒素相关基因Ａ（ＣｙｔｏｔｏｘｉｎａｓｓｏｃｉａｔｅｄｇｅｎｅＡ，ｃａｇＡ）与胃癌关系的研究已成为当前的热点［１］。本文采用原位ＰＣＲ技术研究ＨｐｃａｇＡ感染
The relationship between Helicobacter pylori (Hp) and the occurrence of gastric cancer has received increasing attention. With the gradual deepening of Hp research, the research on the relationship between Cytotoxin associated gene A (cagA) and gastric cancer has become a hot topic [1]. This article uses in situ PCR to study HpcagA infection