In addition, we observed that genes expressed by the stem-like ovarian cancer subtype are enriched for two gene sets that are over-expressed by p53-mutant breast cancers relative to breast cancer without p53 mutation [47], [48] (GSEA p-values 0.00008 and 0.00004, respectively in AOCS dataset–Table S7 in Methods S1). Here, TP53 is linked to ovarian carcinoma.