Fig. 7From: Danshen extract circumvents drug resistance and represses cell growth in human oral cancer cellsInhibition of drug-resistant KB cell growth in vitro via the Danshen crude. An assessment of cell proliferation and viability by using the methylene blue assay in six drug-resistant oral cancer cells treated with varying concentrations of the Danshen crude (0–80 μg/mL) or dimethyl sulfoxide (1 μL/mL) for 24 hBack to article page