Maternal AgeGestational AgeInfant, Small for Gestational AgePregnancyFetal Growth RetardationInfant, NewbornBirth WeightInfant, PrematurePregnancy OutcomeUltrasonography, PrenatalPremature BirthDown SyndromeInfant, Low Birth WeightBirth OrderPregnancy ComplicationsPregnancy, High-RiskPaternal AgePregnancy Trimester, SecondPregnancy Trimester, FirstPlacental InsufficiencyParityCrown-Rump LengthAmniocentesisPrenatal DiagnosisFetal DevelopmentFetusPregnancy Trimester, ThirdInfant, Premature, DiseasesFetal DeathPre-EclampsiaObstetric Labor, PrematureInfant MortalityPlacentaRisk FactorsCongenital AbnormalitiesCesarean SectionBirth CertificatesFetal DiseasesStillbirthAbortion, SpontaneousInfant, Very Low Birth WeightTwinsAmniotic FluidPrenatal CareTrisomyProspective StudiesTerm BirthPregnancy, MultipleCohort StudiesDelivery, ObstetricUmbilical ArteriesApgar ScoreFetal WeightNuchal Translucency MeasurementPerinatal MortalityIntensive Care Units, NeonatalRetrospective StudiesMothersPrenatal Exposure Delayed EffectsFetal HeartChild DevelopmentChromosome DisordersHeart Rate, FetalNondisjunction, GeneticAneuploidyFetal MacrosomiaFetal BloodChorionic Gonadotropin, beta Subunit, HumanPlacental CirculationMaternal ExposureGastroschisisLive BirthCase-Control StudiesPregnancy-Associated Plasma Protein-AHypertension, Pregnancy-InducedReference ValuesPlacenta DiseasesLogistic ModelsRetinopathy of PrematurityInfant, Newborn, DiseasesPregnancy, TwinHernia, UmbilicalRespiratory Distress Syndrome, NewbornEmbryonic and Fetal DevelopmentBody HeightFetal MortalityRegression AnalysisTripletsFetal Membranes, Premature RuptureDiabetes, GestationalMaternal-Fetal ExchangeObstetric Labor ComplicationsOdds RatioPregnancy Complications, CardiovascularBronchopulmonary DysplasiaPregnancy in DiabeticsFertilization in VitroRegistriesDevelopmental DisabilitiesPerinatal Care