Ejection fraction (EF) measures the percentage of blood your left ventricle pumps out with each heartbeat. A typical range is 52% to 72% for males and 54% to 74% for females. An EF below 40% indicates ...
Andrew Ancheta is a finance editor who has reported extensively on cryptocurrency, NFTs, economics, and history. He previously worked as an editor for China Daily. Robert Kelly is managing director of ...
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