Fig. 4From: Therapeutic effects of adipose-tissue-derived mesenchymal stromal cells and their extracellular vesicles in experimental silicosisPercentage of F4/80 positive cells (macrophages) in alveolar septa (a) and inside the granulomatous tissue (b). Box plots are representations (min to max) of 20 random field measurements from 5 animals per group. *Significantly different from control group (labeled C). **Significantly different from SIL-Sal group (p < 0.05)Back to article page