Fig. 4From: Differential pulmonary effects of CoO and La2O3 metal oxide nanoparticle responses during aerosolized inhalation in miceEnhanced-darkfield images- tracheobronchial lymph nodes. Representative images of tracheobronchial lymph nodes from mice 1 and 56 days post exposure to 30 mg/m3 illustrate the initial lung burden and accumulation of nanoparticles in the tracheobronchial lymph nodes. n = 6 male mice per group. Nanoparticles are identified by white arrowsBack to article page