We used doxorubicin intravenously for 8 weeks to creat rabbit models of DCM, and in carvedilol group the rabbits carvedilol were orally given oral for 8 weeks.

• 阿霉素静脉注射8周造成扩张型心肌病模型，卡维地洛组给予口服卡维地洛8周进行干预。