Number of animals included in the study.

(A) Number of animals surviving 1 day post-MI. p = 0.21 (Fisher exact test). (B) Number of animals in the follow-up study with an EF≤70% 1 day after MI. p = 0.26 (Fisher exact test).(A) 心肌梗死（MI，Myocardial Infarction）术后1天存活的动物数量。p=0.21（费希尔精确检验）。(B) 随访研究中，心肌梗死后1天射血分数（EF，Ejection Fraction）≤70%的动物数量。p=0.26（费希尔精确检验）。