The effects of early ambulation in patients with acute myocardial infarction after emergency PCI:a systematic review
GU Yuqing, LI Qingyin, WU Jie, LIU Yuwen
Chinese Journal of Nursing . 2020, (10): 1571 -1577 .  DOI: 10.3761/j.issn.0254-1769.2020.10.023