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Fetal development in pregnant mice upon oral exposure to ZnO NPs. (A) Fetal weight, (B) placental weight, (C) fetal number, (D) fetal length, (E) tail length, and (F) fetal image showing fetus body malformation in pregnant mice treated with 540 mg/kg ZnO NPs. The data are expressed as mean ± SD (n = 60); * p < 0.05 vs. control. Reproduced from [189] under the Creative Commons Attribution license.
