Fig. 2From: Integrative analysis of histopathological images and chromatin accessibility data for estrogen receptor-positive breast cancerDistribution of epithelial tissue proportions for ER-positive breast cancer cases in TCGA. a Distribution of the 54 ER-positive breast cancer cases used in this study. b Distribution of all ER-positive breast cancer cases presently in TCGA. The histograms depict the distribution of epithelial tissue proportions, whereas the box plots stratify the cases into low and high epithelial groups using a cutoff = 0.5. Epithelial tissue proportions which were larger than or equal to 0.5 were classified as epithelial-high, while proportions smaller than 0.5 were classified as epithelial-lowBack to article page