Fig. 5
![Fig. 5](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12931-015-0284-5/MediaObjects/12931_2015_284_Fig5_HTML.gif)
S100A4 protein expression in intrapulmonary vessels of donor and COPD lungs. Representative images of intrapulmonary arteries from a control lungs, b COPD patients. Bars represent 100 μm and 500 μm. c semi-quantitative analysis of S100A4 protein expression in intrapulmonary arteries. Δ Intensity- color intensity of S100A4 protein after immunohistochemical staining