NFKB1 and neoplasm: Out of 13 samples with transcriptionally active NF-κB dimers, nine showed overexpression of EGFR and/or ErbB2 whereas out of 24 tumours without transcriptionally active NF-κB dimers only five showed overexpression of EGFR and/or ErbB2 (κ=0.476, P=0.004).