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. 2012 Nov 22;5(2):641–644. doi: 10.3892/ol.2012.1042

Figure 1.

Figure 1.

Survival index curves of CT2, CT4, CT7, CT10, CT12, CT19 and CT20 at six different concentrations in the human cancer cell line A549. Each point represents the mean ± standard error, calculated using nonlinear regression in GraphPad Prism.