Compared to foundation state, control group and atropine plus metoprolol group had significantly prolongation of SNRT and CSNRT.
与基础状态相比，对照组和美托洛尔组snrt和CSNRT均显著延长。
Compared to foundation state, control group and atropine plus metoprolol group had significantly prolongation of SNRT and CSNRT.
与基础状态相比，对照组和美托洛尔组snrt和CSNRT均显著延长。
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