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Scatterplot of change in TLC in treated lobes and change in RV in treated lobes, divided by difference in groups with different mechanisms of action and non‐responders. 
, Responders without compensatory expansion; 
, responders with compensatory expansion; 
, non‐responders (no change in lobar RV). CT, computed tomography; RV, residual volume; TLC, total lung capacity.
