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. 2019 Oct 15;9:1070. doi: 10.3389/fonc.2019.01070

Figure 5.

Figure 5

LC50 of erlotinib in cells surviving multiple exposure to 1.5 × LC50 concentrations of erlotinib. Cells were exposed to the specified concentration of erlotinib for total of five exposures. The LC50 of each drug in corresponding surviving cell populations was calculated similarly to naïve cells, and the values are summarized in the corresponding table. We were unable to collect survivors after the fifth exposure of AU565 cells to erlotinib at these concentrations.