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Body weight gains of male and female rats administered 20 nm or 100 nm silica nanoparticles.
Notes: (A) Male rats administered 20 nm silica nanoparticles. (B) Female rats administered 20 nm silica nanoparticles. (C) Male rats administered 100 nm silica nanoparticles. (D) Female rats administered 100 nm silica nanoparticles. No significant difference was observed versus untreated controls.
