title: Can estrogen be taken without progesterone?
mesh_terms: D004967:Estrogens / Q000009:adverse effects / Q000627:therapeutic use*; D005260:Female; D020249:Hormone Replacement Therapy; D006801:Humans; D011374:Progesterone / Q000627:therapeutic use*; D011372:Progestins / Q000009:adverse effects / Q000627:therapeutic use
chemical_list: D004967:Estrogens; D011372:Progestins; D011374:Progesterone