miR-219a-5p Inhibits H2O2-induced Oxidative Stress Injury in Human Cardiac Myocytes by Downregulating KLF4  Acta Medicinae Universitatis Scientiae et Technologiae Huazhong . 2021, (6): 723 - .  DOI: 10.3870/j.issn.1672-0741.2021.06.007