ESR2 and breast carcinoma: The expression of STS and EST1E1 evaluated in breast carcinomas were also correlated with clinicopathological parameters such as estrogen receptor α (ER-α), estrogen receptor β(ER-β), progesterone receptor A (PR-A), progesterone receptor B (PR-B) and cell division control protein 47 (CDC47) expression as well as type and stage of the tumors and age and estimated menopausal status of the patients at surgery.