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What is All of the following are poor prognostic markers of CA Breast except and explain in detail?
Answer- B. ER positivityPatients with hormone receptor positive tumor show good response to hormone therapy.Tumors positive for estrogen or progesterone receptors have a higher response rate to endocrine therapy than tumors that do not express estrogen or progesterone receptors.Tumors positive for one receptor and not the other have an intermediate response rate.