title: ACOG issuse hormone therapy guidelines. Experts expand estrogen advice; renounce herbs for hot flashes.
mesh_terms: D015914:Estrogen Replacement Therapy; D004967:Estrogens / Q000008:administration & dosage*; D005260:Female; D017408:Guidelines as Topic; D029001:Herbal Medicine; D006801:Humans
chemical_list: D004967:Estrogens