Objective: To investigate the expression of P16 protein in premalignant lesions and gastric carcinoma, including dysplastic gastric mucosa and intestinal metaplasia in gastric mucosa.
目的:研究p 16蛋白在胃癌前病变(不典型增生及肠化)及胃癌中的表达。
Objective:To study the value of the endoscopic narrow band imaging technique in distinguish the early esophageal cancer and premalignant lesions .