Abstract: Provided herein are products, uses and method classifying a subject afflicted with breast cancer according to a ClinicoMolecular Triad Classification (CMTC)-1, CMTC-2 or CMTC-3 class. The method involves: (i) determining a subject expression profile, said subject expression profile comprising the mRNA expression levels of a plurality of genes that classify breast cancer into three groups by hierarchal clustering TN and Her2+ breast cancers into one class (CMTC genes), in a breast cancer cell sample taken from said subject; (ii) calculating a measure of similarity between said subject expression profile, and one or more of: a) a CMTC-1 reference profile, b) a CMTC-2 reference profile, and c) a CMTC-3 reference profile; and (iii) classifying said subject.