Methods:Subcutaneous tumor model was established in T 739 mice by implanting BTT 739 bladder transitional cancer cells. 60 mice were randomly divided into SEA,BCG and saline groups.

• 方法 :采用已建立T739小鼠皮下可移植性膀胱肿瘤模型 60只 ,随机分为SEA组 ,BCG组和生理盐水组。