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HardRespiratory MedicineCOPD Exacerbation Preventionus-abimus-usmle-step-3

A 62-year-old with severe COPD (FEV₁ 45% predicted) and chronic bronchitis has 2 exacerbations per year and eosinophils 80/µL despite triple therapy. What adjunct may reduce exacerbations?

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