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![Imaging probes for non-invasive tumoral detection and functional monitoring of cancer multidrug resistance](https://image.oaes.cc/f7811102-d6e0-4e38-96e4-58de6fa9b7a2/3346.fig.9.jpg)
Figure 9. Cellular efflux of 99mTc-TMEOP in H69 and drug-resistant variants H69 Lx4 and H69 AR and in H69 Lx4 incubated with 150 M of verapamil, presented as the percentage of cellular retention over a period of 1 h. The results presented were calculated from independent biological replicates (n = 2)