Fig. 4From: Preoperative ultrasound radiomics analysis for expression of multiple molecular biomarkers in mass type of breast ductal carcinoma in situCorrelation cluster analysis of 5234 radiomics features. The Pearson correlation test was used to analyze the correlation between features, and the "pheatmap" R software package was applied to draw heat maps. a ER; b PR; c HER2; d Ki67; e p16; f p53Back to article page