Androgen Receptor (AR) relative to Estrogen Receptor (ER) expression levels (AR/ER ratio): prognostic utility and correlation with intrinsic Breast Cancer (BC) molecular subtypes. (March 2017) - Rangel, N.; Rondon-Lagos, M.; Annaratone, L.; Osella-Abate, S.; Cassoni, P.; Sapino, A.; Castellano, I.