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Effect of budesonide (Bud) and calcitriol (Cal) on airway inflammation and remodeling in ovalbumin- (Ova-) treated mice. H&E: airway eosinophilic infiltration in hematoxylin and eosin-stained sections. PAS: airway mucus secretion in periodic acid-Schiff-stained samples. VG: airway collagen proliferation in Van Gieson-stained sections (original magnification ×400).
