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. 2021 May 21;21:174. doi: 10.1186/s12890-021-01537-z

Fig. 2.

Fig. 2

Comparison of improvement in lung function between the LAMA/LABA and LAMA groups. a Improvement in FEV1. b Improvement in FEV1%pred. c Proportion of patients with excellent FEV1 response to treatment