EstradiolReceptors, EstradiolEthinyl EstradiolOvariectomyProgesteroneEstrogensTestosteroneEstradiol AntagonistsEstradiol DehydrogenasesEstradiol CongenersLuteinizing HormoneEstroneFollicle Stimulating HormoneGonadal Steroid HormonesReceptors, EstrogenUterusEstrogen Receptor alphaSex Hormone-Binding GlobulinEstrogen AntagonistsDrug ImplantsAromataseEstrogen Receptor betaOvarian FollicleEstriolOvaryGonadotropin-Releasing HormoneAndrostenedioneCastrationEstrusEstrous CycleOvulationMenstrual CycleEstrogens, CatecholTamoxifenDihydrotestosteronePregnancyFollicular FluidFollicular PhaseProlactinSteroids17-Hydroxysteroid DehydrogenasesPostmenopauseTrenbolone AcetateInhibinsRadioimmunoassayHormonesGonadotropinsGranulosa CellsRats, Sprague-DawleyBreast NeoplasmsEndometriumEstrogen Replacement TherapySheepDiethylstilbestrolSexual MaturationOrchiectomyCattlePituitary GlandDose-Response Relationship, DrugPreoptic AreaChorionic GonadotropinAromatase InhibitorsDiestrusSexual Behavior, AnimalRNA, MessengerLuteal PhaseReceptors, ProgesteroneVitellogeninsProgestinsEstrogens, Non-SteroidalSex CharacteristicsOrgan SizeOvulation InductionAndrogensDehydroepiandrosteroneHypothalamusMenopauseNafoxidineTime FactorsVentromedial Hypothalamic NucleusPromegestoneProgesterone CongenersCells, CulturedCorpus LuteumProestrusNorpregnadienesPituitary Gland, AnteriorMenstruationSelective Estrogen Receptor ModulatorsBenzhydryl CompoundsPhytoestrogensGonadal HormonesPerimenopauseDehydroepiandrosterone SulfatePremenopauseMedroxyprogesterone AcetateRaloxifeneNitrilesFertilization in VitroAnovulation