The MSW*SW weightings selected 8 genes of which 2 genes belonging to the SRC (KDM4B, CA12) and 6 belonging to the Proliferation signature, previously suggested to be the most prognostic pathway in early breast cancer [33] (SLC7A5, CEP55, RRM2, TTK, TPX2, FOXM1), and the SW and ASW*SW weightings selected 4 genes of which 2 genes belonging to the SRC (KDM4B, CA12) and 2 belonging to the Proliferation signature (SLC7A5, CEP55). This evidence concerns the gene SLC7A5 and breast cancer.