ERBB2 and breast cancer: Interestingly, the SAPSscores for the ER−/HER2− and HER2+ breast cancer subtypes show far greater correlation with the SAPSscores in the ovarian cancer molecular subtypes than with the SAPSscores in ER+ molecular subtypes (median Spearman rho is 0.5 for correlation of ER−/HER2− and HER2+ breast cancer molecular subtypes with ovarian cancer molecular subtypes vs. 0.16 for ER− molecular subtypes with ER+ molecular subtypes (Figure 10).