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Induction of early and late apoptotic cells in the HeLa cell line by 11, 12 and 13. Cells were treated with the indicated concentrations of 11 (A), 12 (B) and 13 (C) for 24 h and 48 h. Cells were stained with Annexin V-PE and 7-AAD and analyzed by flow cytometry. Values represent the mean ± SD of three independent experiments. Data were analyzed by one-way ANOVA with Tukey’s post hoc test p < 0.05 (*), p < 0.001 (***).
