Figure 3 of Zhu, Mol Vis 2012; 18:1973-1982.

Figure 3. The relative cell viabilities of HCE cells incubated with different concentrations of TCS for 48 h (n=5). There was no significant difference in the percentage of cell viability in any of the concentrations of the TCS samples studied. About 94% cells were viable in all the different concentrations of TCS compared to the negative control. These results indicate that TCS has low toxicity toward HCE cells.