左室游离壁3层心肌组织M2受体密度无显著统计学差异。
However, M2 receptors were comparable among the 3 layers of the left free ventricular wall.
试验组PR间期和QT间期稍长于对照组，但无显著统计学差异。
PR interval and QT interval were slightly longer in the test group, but no statistical significance was attained.
两组受体的移植后3个月和12个月血肌酐水平无显著统计学差异。
There was no statistically significant difference between the two groups for the recipient serum creatinine levels at 3 and 12 months after transplantation.
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