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Effect of wogonin or apigenin on proliferation of NCI-H292 cells. NCI-H292 cells were incubated for 72 hours in the presence of varying concentrations of wogonin or apigenin. Cell viability was determined using the sulforhodamine B assay as described in Materials and Methods. Each bar represents a mean±standard error of mean of three independent experiments in comparison with the control set at 100%. *Significantly different from control (p<0.05).
