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ModerateRespiratory MedicineCOPD-Step-up from LAMAus-abfmus-abimus-usmle-step-2us-usmle-step-3

A 60-year-old with COPD and chronic bronchitis has FEV1 42% predicted, 2 exacerbations last year, eosinophils 110/µL. On LAMA. Best escalation?

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