Cervix UteriUterine Cervical NeoplasmsUterusUterine Cervical IncompetenceUterine Cervical DysplasiaVaginal NeoplasmsNeoplasmsVaginal SmearsCarcinoma, Squamous CellIncidenceRegistriesAdenocarcinomaCervical RipeningPregnancyUterine ContractionPregnancy, AnimalMyometriumUterine NeoplasmsCervix MucusHysterectomyEmbryo ImplantationUterine DiseasesUterine Cervical DiseasesProgesteroneEndometriumLabor, ObstetricGenitalia, FemaleVaginaEstradiolOvariectomyDeciduaParturitionCervical Intraepithelial NeoplasiaPseudopregnancyEstrusPapillomaviridaeRelaxinMullerian DuctsFallopian TubesImmunohistochemistryOxytocinEstrous CyclePapillomavirus InfectionsRNA, MessengerSperm TransportBrachytherapyTime FactorsEstrogens