Figure 2From: Letrozole sensitizes breast cancer cells to ionizing radiationGrowth inhibition with letrozole alone. (a) Seven nanomolar letrozole did not inhibit the growth of MCF-7CA cells during 18 days of incubation, whereas (b) 0.7 μM letrozole resulted in about 50% inhibition after 6, 12, and 18 days of incubation. Results are from cell-count assays.Back to article page