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Associations between local changes in the airway volume percentage and lung function after bronchodilator treatment. The changes in the airway tree to lung volume percentage ratio (AWV%) in the right and left lower lobes (RLL and LLL), but not in the right and left upper lobes (RUL and LUL), showed a significant correlation with the forced expiratory volume in one second (FEV1) 1 year after long‐acting muscarinic antagonist (LAMA) treatment
