Ethics approval and consent to participate
post-myocardial infarction
The Ethics Committee of Shiraz University of Medical Sciences approved the study protocol titled “Comparing the effects of once versus twice intracoronary injection of allogeneic-derived mesenchymal stem cells in improving ejection fraction of patients with post-myocardial infarction moderate to severe reduced ejection fraction” on 20/06/2020 under Approval Number IR.SUMS.REC.1399.406. All participants provided written informed consent, and all study procedures were carried out in line with the Declaration of Helsinki.