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Proportion ofannexin V positivity after incubation with compounds 1–4 for 24 and 48 h (upper panels). * and ** denote p < 0.05 and p < 0.01, respectively, as compared with the control condition. Baseline values have been subtracted from treated values. Data are means ± SEM from three determinations. Representative dot-plots from 48-h treatments (lower panels).
