Receptors, ProgesteroneReceptors, EstrogenPromegestoneMifepristoneEstradiolProgestinsBreast NeoplasmsNorpregnadienesProgesterone CongenersGonanesOviductsProgesteroneHormone AntagonistsUterusEndometriumImmunohistochemistryEstrogensEstrogen Receptor alphaCorpus LuteumOvariectomyPregnancyReceptor, erbB-2EstrusReceptors, EstradiolMenstrual CycleLuteinizing HormoneLuteal PhaseTamoxifenMyometriumPregnancy, AnimalUterine NeoplasmsOvaryMedroxyprogesterone AcetateOvulationCarcinoma, Ductal, BreastEstrenesTumor Markers, BiologicalEstrogen Receptor betaKi-67 AntigenRNA, MessengerHydroxyprogesteronesGranulosa CellsMedroxyprogesteroneLeiomyomaCastrationLuteal CellsEndometrial NeoplasmsChorionic GonadotropinSteroidsChickensGonadal Steroid HormonesPseudopregnancyEstrogen AntagonistsMammary Glands, AnimalCytosolProgesterone-Binding GlobulinDinoprostPregnenediones20-alpha-DihydroprogesteroneEstrous CycleOvarian FolliclePrognosisNorethindroneFollicle Stimulating HormoneReceptors, SteroidMenstruationReceptors, GlucocorticoidDeciduaImmunoenzyme TechniquesContraceptive Agents, FemaleProlactinReceptors, AndrogenEmbryo ImplantationNeoplasms, Hormone-DependentLabor, ObstetricFollicular PhaseLuteolysisSheepBreastPregnanoloneCarcinoma, LobularDiestrusReverse Transcriptase Polymerase Chain Reaction20-Hydroxysteroid DehydrogenasesLevonorgestrelCell NucleusEndometriosisTime FactorsAntineoplastic Agents, Hormonal3-Hydroxysteroid DehydrogenasesOxytocinProtein IsoformsGonadotropin-Releasing HormonePregnancy MaintenanceKeratin-6PregnanedionesGene Expression RegulationProestrusCattleTranscription, Genetic