Fig. 14From: Stem cell-derived exosomes in the treatment of acute myocardial infarction in preclinical animal models: a meta-analysis of randomized controlled trialsSubgroup analysis showing the effect of the follow-up duration. Compared with the control group, LVEF in the exosome-treatment group was significantly improved, whether followed up for < 7 days (P = 0.000) or for > 14 days (P = 0.000)Back to article page