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Comet assay of THP1 cells treated with (A) copper oxide nanoparticles, (B) cerium oxide nanoparticles, and (C) mixture of copper oxide and cerium oxide nanoparticles. Data are expressed as means ± SE from three independent experiments. Analysis of variance (α < 0.05), (*P < 0.05, **P < 0.01) [Color figure can be viewed at wileyonlinelibrary.com]
