Estrogens, Conjugated (USP)EstrogensEstrogen Replacement TherapyMedroxyprogesterone AcetateReceptors, EstrogenEstrogen Receptor alphaEstradiolMenopausePostmenopauseEstrogen Receptor betaPlacebo EffectEstrogens, CatecholOvariectomySelective Estrogen Receptor ModulatorsUbiquitin ThiolesteraseUbiquitin-Specific ProteasesDouble-Blind MethodEstrogens, Non-SteroidalBreast NeoplasmsTamoxifenEstradiol CongenersAromataseReceptors, ProgesteroneDiethylstilbestrolUterusEstroneProgesteroneEthinyl EstradiolProgestinsPhytoestrogensEndopeptidasesRNA, MessengerNeoplasms, Hormone-DependentDose-Response Relationship, Drug