KRT14 and breast cancer: Met amplification has been found in mammary tumors in Brca1f/Δ;Trp53+/−;MMTV-cre50 and Brca1f/f;Trp53f/f;Wap-cre30 models but not the Brca1f/f;Trp53f/f;K14-cre model43.