Maternal AgeGestational AgeInfant, Small for Gestational AgePregnancyInfant, NewbornBirth WeightInfant, PrematurePregnancy OutcomeUltrasonography, PrenatalDown SyndromePremature BirthBirth OrderInfant, Low Birth WeightPaternal AgePregnancy, High-RiskPregnancy ComplicationsPregnancy Trimester, FirstPregnancy Trimester, SecondParityAmniocentesisCrown-Rump LengthFetal Growth RetardationPrenatal DiagnosisRisk FactorsChild WelfareInfant, Premature, DiseasesInfant MortalityCongenital AbnormalitiesPregnancy Trimester, ThirdMothersChild BehaviorFetal DeathObstetric Labor, PrematureDisabled ChildrenFetusProspective StudiesFetal DiseasesFetal DevelopmentBirth CertificatesCesarean SectionRetrospective StudiesInfant, Very Low Birth WeightAbortion, SpontaneousTwinsStillbirthTrisomyTerm BirthPrenatal CareDelivery, ObstetricPregnancy, MultipleApgar ScoreAmniotic FluidPre-EclampsiaCohort StudiesIntensive Care Units, NeonatalNuchal Translucency MeasurementBody HeightCase-Control StudiesPrenatal Exposure Delayed EffectsLogistic ModelsChromosome DisordersPerinatal MortalityReference ValuesRegression AnalysisNondisjunction, GeneticAge FactorsAneuploidyFetal MacrosomiaMaternal ExposureChild DevelopmentPlacentaChorionic Gonadotropin, beta Subunit, HumanFetal HeartGastroschisisSocioeconomic FactorsChild Health ServicesLive BirthChild RearingParentsInfant, Newborn, DiseasesCross-Sectional StudiesChild Behavior DisordersPrevalencePregnancy-Associated Plasma Protein-ARetinopathy of PrematurityFetal WeightFetal BloodHernia, UmbilicalChild, InstitutionalizedAnthropometryBreast FeedingOdds RatioPregnancy, TwinRespiratory Distress Syndrome, NewbornTripletsChild PsychologyFetal MortalityFetal Membranes, Premature RuptureHeart Rate, FetalRegistries