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Cytotoxicity screening of Kedrostis africana (A) cell number with (B) cell density for HeLa cells; live- and dead cell numbers were obtained from Hoechst 33342 and PI staining, respectively and cell density from crystal violet staining. Results are reported as means ± SD where each experiment was performed three times, each in triplicate (*p < 0.05; **p < 0.01; ***p < 0.005 compared to untreated sample).
