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(A, B) Hematoxylin-eosin staining of the lung (×40) and (C) the mean linear intercepts of both groups. (A) The architecture of alveolar septa and the airspace was well preserved in the control group, and (B) the alveoli were enlarged in the elastin-induced emphysema group. (C) The mean linear intercept was significantly higher in the elastin-induced emphysema group than that in the control group. ap < 0.01 vs. the control group.
