Methods: Immunohistochemistry staining was used to detect the expression of COX-2 and E-cadherin in 40 cases of gastric cancer.All cases were followed-up for 3 to 5 years.

• 方法：采用免疫组织化学方法检测40例胃癌中COX-2和E-cadherin的表达，并对40例胃癌患者的3年存活情况进行随访。