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Biodistribution of intravenous or inhaled administration of yuanhuacine/MNPs accumulation in the (a) liver, (b) kidney, (c) spleen, (d) reproductive, and (e) lung at different time points with a yuanhuacine dose of 100 μg/kg (n = 4). *p < .05, **p < .01 versus intravenous group.
