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Association of the airway/lung ratio (ALR) on computed tomography with lung function: a) forced expiratory volume in 1 s (FEV1)/forced vital capacity (FVC) and b) FEV1 % pred. Pearson correlation coefficients and p-values for a) and b) were r=0.35, p<0.0001 and r=0.26, p=0.0007, respectively. CLE: centrilobular emphysema.
