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Metabolic Viability of Caco-2 Cells after Treatment with Metals. Caco-2 cells were treated with various concentrations of metals for 24 h after which metabolic viability was assessed using the MTT assay: (A) cobalt; (B) strontium; (C) cesium; (D) uranium. Data are the mean of three independent experiments. Error bars represent standard deviation. An * denotes a result statistically different from the no metal control as determined by unpaired t-test with significance at p < 0.05.
