title: Are progesterone receptor assays needed in post-menopausal, estrogen receptor-negative patients?
mesh_terms: D001943:Breast Neoplasms / Q000188:drug therapy / Q000378:metabolism*; D005260:Female; D006801:Humans; D008593:Menopause; D011960:Receptors, Estrogen / Q000032:analysis*; D011980:Receptors, Progesterone / Q000032:analysis*
chemical_list: D011960:Receptors, Estrogen; D011980:Receptors, Progesterone