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  1. Article

    Open Access

    Novel Echocardiography-Derived Left Ventricular Stiffness Index in Low-Flow Versus Normal-Flow Severe Aortic Stenosis with Preserved Left Ventricular Ejection Fraction

    Background Paradoxical low-flow (LF) severe aortic stenosis (AS) with preserved left ventricular ejection fraction (LVEF) may have poorer prognosis than normal-flow (NF) AS, though its pathophysiology remained un...

    **ghao Nicholas Ngiam, Nicholas WS Chew, Benjamin Yong-Qiang Tan… in Scientific Reports (2020)

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