(TCGA: Basal N=171, Her2 N=78, LumA N=499, LumB N=197, Normal N=36; METABRIC: Basal N=199, Her2 N=220, LumA N=679, LumB N=461, Normal N=140) (D) ELF3 expression levels of different IntClusts of breast cancers in the METABRIC database (one-way ANOVA; for IntClust 5 and 10, Mann–Whitney U test, ns, no significance; 5 N=184, 10 N=219, 8 N=289, 9 N=142, 6 N=84, 1 N=132, 3 N=282, 2 N=72, 7 N=182, 4 N=318). Here, ERBB2 is linked to breast carcinoma.