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. 2016 May 6;124(12):1870–1875. doi: 10.1289/EHP234

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Comparison of percent difference from control of activated microglia in the olfactory bulb between 20- and 110-nm silver nanoparticles at different post-exposure days. *Significantly different from citrate control (p < 0.05). ^#Significantly different from the mean value at post-exposure day 56 (T56) in animals that had the same exposure (p < 0.05). Values are the mean ± SE. The mean value was obtained from 3 animals per particle type and time point except for the group treated with 110-nm silver nanoparticles at T56, where the mean value was obtained from 2 animals.