Objective To observe the effect of long-term enalapril and metoprolol therapy on cardiac function in patients with dilated cardiomyopathy(DCM).
目的观察依那普利联合美托洛尔长程治疗对扩张型心肌病（DCM）心力衰竭患者心功能的影响。
Objective To observe the effect of long-term enalapril and metoprolol therapy on cardiac function in patients with dilated cardiomyopathy(DCM).
目的观察依那普利联合美托洛尔长程治疗对扩张型心肌病（DCM）心力衰竭患者心功能的影响。
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