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ModerateCardiologyHeart Failure with Reduced Ejection Fractionus-abimus-usmle-step-2us-usmle-step-3

A 58-year-old man (LVEF 30%) on sacubitril/valsartan, metoprolol succinate, and spironolactone remains NYHA class II. Which additional drug class improves survival and should be added?

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