
Keywords: (3- (4،5-dimethylthiazol-2-yl) -2،5-diphenyltetrazolium bromide); IC50; concentration that inhibit 50% cell growth; MCF-7 DR; doxorubicin resistant MCF-7 cells; MDA-MB-231DR; doxorubicin resistant MDA-MB-231 cells; MCF-7 7T; MCF-7 cells with 7th treatment; MDA-MB-231 7T; MDA-MB-231 cells with 7th treatment; ER; Estrogen