Maternal AgeGestational AgeInfant, Small for Gestational AgePregnancyInfant, NewbornBirth WeightInfant, PrematurePostoperative ComplicationsPregnancy OutcomeUltrasonography, PrenatalPregnancy ComplicationsPremature BirthDown SyndromeBirth OrderInfant, Low Birth WeightPregnancy, High-RiskPaternal AgePregnancy Trimester, FirstPregnancy Trimester, SecondRetrospective StudiesParityFetal Growth RetardationRisk FactorsAmniocentesisCrown-Rump LengthPrenatal DiagnosisInfant, Premature, DiseasesProspective StudiesPregnancy Trimester, ThirdInfant MortalityFetal DeathObstetric Labor, PrematureCongenital AbnormalitiesCesarean SectionFetusFetal DiseasesBirth CertificatesFetal DevelopmentAbortion, SpontaneousCohort StudiesInfant, Very Low Birth WeightStillbirthTwinsDelivery, ObstetricPre-EclampsiaPregnancy, MultipleApgar ScoreTerm BirthPrenatal CareTrisomyAmniotic FluidTreatment OutcomeObstetric Labor ComplicationsIntensive Care Units, NeonatalNuchal Translucency MeasurementMothersFollow-Up StudiesIntraoperative ComplicationsPerinatal MortalityLogistic ModelsFetal MacrosomiaChromosome DisordersPlacentaNondisjunction, GeneticChild DevelopmentTime FactorsAneuploidyGastroschisisChorionic Gonadotropin, beta Subunit, HumanCase-Control StudiesFetal HeartLive BirthPrenatal Exposure Delayed EffectsInfant, Newborn, DiseasesPregnancy-Associated Plasma Protein-ARegression AnalysisMaternal ExposureHernia, UmbilicalReference ValuesPregnancy Complications, CardiovascularRetinopathy of PrematurityFetal WeightHypertension, Pregnancy-InducedPregnancy, TwinRespiratory Distress Syndrome, NewbornIncidenceOdds RatioRegistriesFetal Membranes, Premature RuptureTripletsDiabetes, GestationalFetal BloodFetal MortalityHeart Rate, FetalRisk AssessmentBody HeightUmbilical ArteriesAbortion, InducedPregnancy in DiabeticsBronchopulmonary Dysplasia