UterusCervix UteriNeckHead and Neck NeoplasmsNeck PainUterine Cervical NeoplasmsCervical RipeningPregnancyCarcinoma, Squamous CellNeck InjuriesUterine ContractionPregnancy, AnimalFemoral Neck FracturesMyometriumUterine NeoplasmsCervix MucusHysterectomyEmbryo ImplantationUterine DiseasesUterine Cervical DiseasesProgesteroneEndometriumLabor, ObstetricGenitalia, FemaleVaginaEstradiolOvariectomyUterine Cervical IncompetenceDeciduaUterine Cervical DysplasiaCervical Intraepithelial NeoplasiaParturitionPseudopregnancyPapillomaviridaeEstrusImmunohistochemistryVaginal NeoplasmsRelaxinVaginal SmearsMullerian DuctsFallopian TubesPapillomavirus InfectionsOxytocinEstrous CycleBrachytherapySperm TransportRNA, MessengerEstrogensObstetric Labor, PrematureLabor Stage, FirstCarcinoma in SituOvaryDiethylstilbestrolCastrationLabor, InducedPlacentaIn Situ HybridizationTime FactorsColposcopyEpitheliumTumor Virus InfectionsCerclage, CervicalUterine HemorrhageAdenocarcinomaCarcinoma, AdenosquamousUterine RuptureRetrospective StudiesSheepTreatment OutcomeEmbryo Implantation, DelayedProstaglandins FUterine CervicitisNeoplasm StagingUterine Cervical ErosionNeoplasmsPelvisPrecancerous ConditionsAdenosarcomaOxytocicsCarcinomaGonanesExtraembryonic MembranesGestational AgeReceptors, OxytocinNeoplasms, Squamous CellCesarean SectionOrgan SizePrognosisDinoprostPapanicolaou TestCombined Modality TherapyPregnancy Trimester, SecondPostpartum PeriodHysterosalpingographyEndometrial NeoplasmsLabor OnsetAdministration, IntravaginalBlastocystRadiotherapy DosageReceptors, Estrogen