The data represented in Fig. 6A depicts the clustering of the samples as function of molecular subtype (HR+, HER2+, HER2+HR+ and TNBC), tumor grade (GIII and GI–II), age (young (≤40) and old (>40)), and ethnicity (MENA vs non-MENA) based on the top 100 most variable miRNAs. Here, ERBB2 is linked to neoplasm.