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Cytotoxic effects induced by BTCI. (a) MCF-7, (b) MDA-MB-231 and (c) MCF-10 cells were incubated with BTCI (0-300 μM) for 24 h. Cell viability was determined by MTT assay. Results are presented as mean±S.D. of two separate experiments conducted in triplicate, *P<0.05 versus untreated cells.
