UterusEstrogensReceptors, EstrogenEstrogen Receptor alphaEstrogen Receptor betaEstradiolEstrogens, Conjugated (USP)OvariectomyEstrogens, CatecholSelective Estrogen Receptor ModulatorsEstrogens, Non-SteroidalProgesteronePregnancyBreast NeoplasmsDiethylstilbestrolTamoxifenPregnancy, AnimalEmbryo ImplantationUterine ContractionEndometriumMyometriumReceptors, ProgesteroneEstradiol CongenersCervix UteriAromataseUterine NeoplasmsEstroneUterine DiseasesRNA, MessengerDeciduaCastrationEstrous CycleProgestinsPseudopregnancyEstrusOvaryPostmenopauseNafoxidineEthinyl EstradiolImmunohistochemistryPhytoestrogensHysterectomyGenitalia, FemaleVaginaFallopian TubesRats, Sprague-DawleyOviductsGonadal Steroid HormonesOrgan SizeReceptors, EstradiolGene Expression RegulationMenopauseNeoplasms, Hormone-DependentOxytocinReverse Transcriptase Polymerase Chain ReactionAromatase InhibitorsHydroxyestronesPlacentaPhenolsBenzhydryl CompoundsMenstrual CycleAntineoplastic Agents, HormonalMedroxyprogesterone AcetateVitellogeninsCell Line, TumorEndometrial NeoplasmsTestosteroneIn Situ HybridizationMullerian DuctsLabor, ObstetricGene ExpressionEmbryo Implantation, DelayedSignal TransductionDose-Response Relationship, DrugTime FactorsIsoflavonesTranscription, GeneticEndocrine DisruptorsSheepResponse ElementsBlotting, WesternDiestrusAndrogensSex CharacteristicsBase SequenceEpitheliumMammary Glands, AnimalReceptors, AndrogenEndometrial HyperplasiaMolecular Sequence DataGene Expression Regulation, NeoplasticUterine RuptureEndometriosisTumor Cells, CulturedBlastocystCells, CulturedRelaxinMice, Inbred C57BLMedroxyprogesteroneBreast