Figure 3From: Phosphorylation of estrogen receptor α serine 167 is predictive of response to endocrine therapy and increases postrelapse survival in metastatic breast cancerRepresentative immunohistochemical staining of estrogen receptor (ER)-β1 (a,b), ER-βcx/β2 (c,d), progesterone receptor (PR)A (e,f), and PRB (g,h) in invasive ductal carcinoma. Negative (a,c,e,g) and positive (b,d,f,h) nuclear staining was observed in these cells.Back to article page