Efficacy and safety of Shenfu injection on bradyarrhythmia: A systematic review and meta-analysis.

As shown in Figure S5, Supplemental Digital Content, https://links.lww.com/MD/O787 , although the P value for subgroup differences did not reach statistical significance, the high I 2 value (64.1%) indicates that the intervention type (i.e., whether SFI is combined with other treatments) may contribute to heterogeneity. 3.5.

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