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. 2008 Dec 5;117(4):587–596. doi: 10.1289/ehp.0800251

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Effects of 30 μM chlorpyrifos (A), diazinon (B), dieldrin (C), and Ni²⁺ (D) exposure on expression of genes encoding the glutathione S-transferases in differentiating PC12 cells.

*Significant main treatment effect. ^†Treatment × time interaction and times for which treatment effects were present. Multivariate ANOVA (all treatments, all genes, time) indicates a significant main effect of treatment (p < 0.0001) and interactions of treatment × time ( p < 0.001), treatment × gene (p< 0.0001), and treatment × gene × time (p < 0.0001).