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MediumCardiologyHeart Failure (HFrEF)us-abimus-usmle-step-2us-usmle-step-3

A 59-year-old with HFrEF (EF 25%) on ARNI, β-blocker, MRA, and SGLT2 inhibitor remains symptomatic (NYHA III), Black race. What additional therapy reduces mortality?

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