Using the same cutoff for HMGA2-high expression, approximately 13.0% (23 of 177) of tumor samples annotated as TNBC in The Cancer Genome Atlas (TCGA) Breast Invasive Carcinoma data set (35) had high expression of HMGA2 after adjustment with the ComBat algorithm (Supplementary Figure 4). Here, HMGA2 is linked to invasive breast carcinoma.