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Group mean ± SD lung density (A), lung tissue volume (Vtis) (B) and extravascular lung water (EVLW) (C) before (pre-albuterol; white bars) and after (post-albuterol; black bars) nebulized albuterol administration in healthy control subjects (Control) and heart failure patients with reduced ejection fraction (HFrEF). *P < 0.05, **P < 0.01; value significantly different vs. pre-albuterol.
