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. 2017 Jun 2;9(5):431–437. doi: 10.4168/aair.2017.9.5.431

Fig. 3. Comparison of pulmonary function trends between COPD and ACO. Predicted FEV1 (A) and absolute FEV1 (B) are shown. COPD, chronic obstructive pulmonary disease; ACO, asthma-chronic obstructive pulmonary disease overlap; FEV1, forced expiratory volume in 1.

Fig. 3