目的观察和评价早搏对心功能的影响。
Objective To observe and evaluate the effect of premature beats on cardiac function.
于患者用药后第2周和第4周分别进行观察记录并评价两组临床疗效。
Observation was taken and clinical effect was evaluated after 2 and 4 weeks treatment.
于患者用药后第2周和第4周分别进行观察记录并评价两组临床疗效。
Observation was taken and clinical effect was evaluated after 2 and 4 weeks treatment.
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