There was a marked difference between the positive rate of the ventricular late potentials(VLP) in COPD group and control group( P< 0.01).
COPD组与对照组心室晚电位（VLP）阳性率比较有显著性差异（P＜0．01）。
METHODS: a randomized, positive control, the 233 cases were divided into treatment group (116 cases) and drug group (117 cases).
方法：采用随机、阳性药物对照、将233例分为治疗组(116例)和药物组(117例)。
But in control group, positive rate was only less than 5%, and we could only see a single normal DNA strip.
对照细胞呈现阳性染色者每视野不超过5%，DNA凝胶电泳只见一条正常基因组dna带。
Compared with those of the control group, Carvedilol had a positive effect significantly in the treatment group.
二组比较有明显差异，治疗组作用优于对照组。
Bcl-2 expression score showed that a strong positive expression happened in LN group but a weak expression in the control group.
免疫组化评分显示层粘连蛋白组有强阳性表达，正常对照组有弱阳性表达；
Bcl-2 expression score showed that a strong positive expression happened in LN group but a weak expression in the control group.
免疫组化评分显示层粘连蛋白组有强阳性表达，正常对照组有弱阳性表达；
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