Fig. 2: Microscopic appearance of the lungs at histological analysis.

Representative microphotographs of the right (a) and left (b) lungs from the NVLI-15 group, NVLI-7.5 group and MV-Control group. Note the collapse characterizing both NVLI groups. Hematoxylin-Eosin stain was used and the scale bar of 300 μm applies to all the images.