Objective: To approach the expression of matrix metalloproteinase (MMP) 2 and 9 and its significance in benign breast disease and breast carcinoma.

• 目的:探讨基质金属蛋白酶-2、-9(MMP-2、MMP-9)在乳腺良性病变及乳腺癌组织中的表达及意义。