Fig. 5From: Evaluation of asthma–chronic obstructive pulmonary disease overlap using a mouse model of pulmonary diseaseLung tissue (A) from the airway models stained with hematoxylin and eosin (10×) to evaluate air space widening (emphysema). (B) Mean linear intercepts, calculated by measuring alveolar space diameters in random fields per slide using a slide scanner (Panoramic MIDI)Back to article page