When the analysis was confined to cases with CT scans obtained during the stable phase, the correlation between Δ mucus plug score and the number of exacerbations requiring systemic steroid remained significant and was close to significance with the number of exacerbations requiring antibiotics ( Table E2 ).
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Clinical and pathophysiological roles of lower lobe-dominant mucus plugs on computed tomography in patients with asthma with and without bronchiectasis.
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