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Tumor histology. (A) Untreated control. Low-power field (LPF). (B) Untreated control. High-power field (HPF). (C) CDDP+PEM treated. (LPF) (D) CDDP+PEM treated. (HPF). (E) AZD9291 treated. (LPF). (F) AZD9291 treated. (HPF). Scale bars: 100 μm.
