METHODS Expression of bcl -2 and p53 in 45 colorectal ade- nomas and 61 colorectal carcinomas was detected by immunohis- tochemical staining.

• 方法用免疫组化方法观察了45例大肠腺瘤和61例大肠癌中 bcl-2和 P53蛋白的表达。