Objective To investigate the changes of laminin(LN) and fibronectin(FN) expressions in atypical hyperplasia and breast cancer.

• 目的 观察层粘连蛋白 (Laminin ,LN)和纤维连接蛋白 (Fibronectin ,FN)在乳腺不典型增生及乳腺癌中表达的变化。