目的研究稳心颗粒治疗冠心病室性期前收缩的临床疗效。

Objective to study the effect of Wenxin Granule to treat premature ventricular beats (PVB) of coronary heart disease (CHD).

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目的：对比观察稳心颗粒与维拉·帕米对室上性期前收缩的疗效及安全性。

Objective: To observe the security and efficiency of Wenxin granule and verapamil on supper ventricular premature beats.

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