P Li, H Zhao, J Zhang, Y Ning, Y Tu, D Xu… - Frontiers in …, 2021 - frontiersin.org
The new guidelines classify heart failure (HF) into three subgroups based on the ejection
fraction (EF): HF with reduced EF (HFrEF), HF with mid-range EF (HFmrEF), and HF with …