Maternal AgeGestational AgePregnancyPregnancy OutcomeInfant, Small for Gestational AgePregnancy ComplicationsInfant, NewbornBirth WeightPregnancy Trimester, FirstPregnancy, AnimalInfant, PrematurePregnancy Trimester, SecondPregnancy Trimester, ThirdUltrasonography, PrenatalPregnancy, High-RiskPregnancy, EctopicPremature BirthPregnancy, MultipleDown SyndromeInfant, Low Birth WeightParityAbortion, SpontaneousPregnancy TrimestersPregnancy Complications, CardiovascularBirth OrderFetal Growth RetardationFetal DeathPregnancy in DiabeticsPrenatal DiagnosisPaternal AgePregnancy RateAmniocentesisCrown-Rump LengthPre-EclampsiaPregnancy in AdolescenceObstetric Labor, PrematureCongenital AbnormalitiesFetusCesarean SectionFetal DevelopmentPregnancy Complications, InfectiousRisk FactorsPrenatal CareFetal DiseasesPlacentaPregnancy TestsInfant MortalityTwinsPregnancy, TwinPregnancy, TubalInfant, Premature, DiseasesStillbirthDelivery, ObstetricPregnancy Complications, NeoplasticProspective StudiesAmniotic FluidBirth CertificatesCohort StudiesPrenatal Exposure Delayed EffectsAbortion, InducedRetrospective StudiesPregnancy, ProlongedFertilization in VitroApgar ScoreMothersInfant, Very Low Birth WeightTerm BirthTrisomyMaternal ExposureHypertension, Pregnancy-InducedPregnancy Complications, HematologicChorionic Gonadotropin, beta Subunit, HumanPregnancy ProteinsNuchal Translucency MeasurementMaternal-Fetal ExchangeLive BirthDiabetes, GestationalFetal MacrosomiaPerinatal MortalityIntensive Care Units, NeonatalEmbryo TransferLabor, ObstetricChromosome DisordersPregnancy, UnplannedFetal WeightTripletsFetal HeartPregnancy, UnwantedChild DevelopmentPregnancy-Associated Plasma Protein-ALogistic ModelsCase-Control StudiesFetal BloodAneuploidyGravidityReproductive Techniques, AssistedUterusInfant, Newborn, DiseasesObstetric Labor ComplicationsEmbryonic and Fetal Development