Objective: To detect the expression of P16 and MDM2 in gastric tumors (including both benign and malignant ones), and explore their relationship in the cell apoptosis of gastric carcinoma.

• 摘要目的：检测胃肿瘤及正常组织中P16与MDM2的表达，探讨其在肿瘤凋亡中的相互关系。