Associations between components of the retinoid pathway and breast cancer phenotypeAssociations between the expression of the indicated members of the retinoid pathway in the TCGA gene-expression database are shown. Mammary tumors are classified into Luminal-A, Luminal-B, HER2-like, Normal-like, and Basal according to the PAM50 fingerprint. The average expression levels and the corresponding SD values of the indicated members of the retinoid pathway are shown by the upper box plots. For each member of the retinoid pathway, significant differences between the indicated groups of tumors are shown in the lower table. Significant P-values for the indicated comparisons (Student's t-test) are shown in red. 