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. 2008 Feb 26;116(7):854–862. doi: 10.1289/ehp.10467

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Effect of Cd²⁺ on cell viability and apoptosis in HEI-OC1 cells. Abbreviations: FL2, red fluorescence; M1, first mitosis; M2, second mitosis. (A) Viability of cells (mean ± SE) evaluated by MTT colorimetric assay as a function of Cd²⁺ concentration and exposure time. (B) Apoptosis in cells as indicated by cell-cycle analysis.

*p < 0.05 compared with untreated control cells.