Expression of RBM5, EGFR and KRAS protein in NSCLC. A, Western blot of RBM5, EGFR and KRAS protein expression in representative tissue samples from NSCLC and non-tumor specimens. Total cellular protein was extracted, subjected to Western blot analysis and quantified using Quantity One software. B, Quantitative data from A. *p < 0.05 compared to the normal tissues using Wilcoxon signed rank test.