Gestational AgePregnancyInfant, Small for Gestational AgeBirth WeightInfant, NewbornPregnancy OutcomePregnancy ComplicationsTh2 CellsTh1 CellsPremature BirthInfant, PrematurePregnancy, AnimalInfant, Low Birth WeightPregnancy Trimester, ThirdUltrasonography, PrenatalPregnancy Trimester, FirstPregnancy Trimester, SecondFetal Growth RetardationPregnancy, EctopicReference ValuesTh17 CellsRisk FactorsFetal DevelopmentPregnancy TrimestersPregnancy, MultipleProspective StudiesPregnancy Complications, CardiovascularCohort StudiesBody HeightFetusFetal DeathMaternal AgePregnancy in DiabeticsInfant, Premature, DiseasesPregnancy RateObstetric Labor, PrematureBody Mass IndexBirth RatePre-EclampsiaPlacentaPregnancy Complications, InfectiousChild DevelopmentAnthropometryPrenatal Exposure Delayed EffectsParityAbortion, SpontaneousRetrospective StudiesPregnancy TestsPregnancy, High-RiskBirth CertificatesCongenital AbnormalitiesBody WeightPregnancy in AdolescencePregnancy, TubalMaternal ExposurePregnancy Complications, NeoplasticGrowth ChartsCesarean SectionDelivery, ObstetricFetal DiseasesInfant MortalityBirth OrderCrown-Rump LengthPrenatal CareObesityFetal MacrosomiaFetal WeightCross-Sectional StudiesTwinsAmniotic FluidApgar ScoreInfant, Very Low Birth WeightMaternal-Fetal ExchangeAge FactorsRegression AnalysisCase-Control StudiesLogistic ModelsPregnancy, TwinFetal BloodTime FactorsPrenatal DiagnosisUmbilical ArteriesStillbirthIntensive Care Units, NeonatalOverweightFollow-Up StudiesPrevalenceMothersAbortion, InducedGrowthSex FactorsEmbryonic and Fetal DevelopmentPregnancy ProteinsPregnancy Complications, HematologicUnited StatesPredictive Value of TestsTerm BirthFetal HeartRisk AssessmentPregnancy, Prolonged