KRAS and breast cancer: The mean mRNA expression values between BC and normal tissue for each gene, were as follows: p14ARF, 0.0325±0.0488 vs. 0.0100±0.0118 (p = 0.1087); AKT1, 0.0321±0.0230 vs. 0.0262±0.0174 (p = 0.3632); HRAS, 0.0015±0.0021 vs. 0.0015±0.0021 (p = 0.9752); ARAF, 0.9931±0.0047 vs. 0.9942±0.0040 (p = 0.5201); BRAF, 0.8933±0.0657 vs. 0.9053±0.0486 (p = 0.8999); RAF1, 0.9348±0.0527 vs. 0.9419±0.0293 (p = 0.6681); MMP9, 0.0014±0.0015 vs. 0.0023±0.0054 (p = 0.1265); EGFR, 0.0078±0.0073 vs. 0.0049±0.0048 (p = 0.0948); KRAS, 0.0876±0.0997 vs. 0.0773±0.0900 (p = 0.4035; Mann-Whitney U test) (Figure S3B).