Additionally, multivariate testing ABA1 expression variation as a random function of CNA, ER status, and tumor subtypes showed that CNA in basal‐like tumor subtype samples provides a major explanatory contribution of ABI1 expression variation in our data (P < 1.00E‐6; two‐way ANOVA, Statistica 13). The gene discussed is ABI1; the disease is neoplasm.