Cytotoxicity of SM on SAE and BTE cells. Cells were exposed to various concentrations of SM. Cell viability was measured using the MTS assay 24 h after exposure, and is expressed as a percentage of the control (unexposed cells, "C"). ***P < 0.001 versus control.
Gao et al. BMC Cell Biology 2007 8:17 doi:10.1186/1471-2121-8-17