Gestational AgeMaternal AgeInfant, Small for Gestational AgePregnancyInfant, NewbornInfant, PrematureBirth WeightUltrasonography, PrenatalPregnancy OutcomePremature BirthInfant, Low Birth WeightFetal Growth RetardationPregnancy Trimester, SecondPregnancy ComplicationsInfant, Premature, DiseasesPregnancy Trimester, FirstCrown-Rump LengthDown SyndromePregnancy Trimester, ThirdBirth OrderFetusPregnancy, High-RiskObstetric Labor, PrematureFetal DevelopmentPrenatal DiagnosisInfant, Very Low Birth WeightParityInfant MortalityAmniocentesisFetal DiseasesFetal DeathPaternal AgeAmniotic FluidTerm BirthTwinsRisk FactorsIntensive Care Units, NeonatalApgar ScoreCongenital AbnormalitiesBirth CertificatesCesarean SectionStillbirthPre-EclampsiaProspective StudiesDelivery, ObstetricFetal HeartCohort StudiesAbortion, SpontaneousPrenatal CareRetrospective StudiesChild DevelopmentPlacentaRetinopathy of PrematurityPregnancy, MultipleRespiratory Distress Syndrome, NewbornFetal MacrosomiaUmbilical ArteriesInfant, Newborn, DiseasesFetal WeightReference ValuesMothersPerinatal MortalityBronchopulmonary DysplasiaFetal BloodIntensive Care, NeonatalNuchal Translucency MeasurementFetal Membranes, Premature RuptureTrisomyFetal MortalityInfant, Extremely Low Birth WeightMaternal ExposureEmbryonic and Fetal DevelopmentPrenatal Exposure Delayed EffectsHeart Rate, FetalTripletsPregnancy, TwinBody HeightDevelopmental DisabilitiesRegression AnalysisInfant, Extremely PrematureLive BirthLogistic ModelsHypertension, Pregnancy-InducedFetal Organ MaturityCase-Control StudiesChorioamnionitisPregnancy TrimestersDiabetes, GestationalGastroschisisPregnancy in DiabeticsChorionic Gonadotropin, beta Subunit, HumanChromosome DisordersLabor, InducedPerinatal CareLabor, ObstetricPregnancy-Associated Plasma Protein-AAbortion, InducedPregnancy Complications, CardiovascularMaternal-Fetal ExchangeUmbilical Cord