Psychological TechniquesMaternal AgeGestational AgeInfant, Small for Gestational AgePregnancyInfant, NewbornBirth WeightInfant, PrematurePregnancy OutcomeUltrasonography, PrenatalDown SyndromePremature BirthBirth OrderInfant, Low Birth WeightPaternal AgePregnancy, High-RiskPregnancy ComplicationsPregnancy Trimester, FirstPregnancy Trimester, SecondParityCrown-Rump LengthAmniocentesisFetal Growth RetardationPrenatal DiagnosisInfant, Premature, DiseasesPregnancy Trimester, ThirdInfant MortalityObstetric Labor, PrematureFetal DeathCongenital AbnormalitiesFetusRisk FactorsBirth CertificatesFetal DiseasesFetal DevelopmentCesarean SectionAbortion, SpontaneousInfant, Very Low Birth WeightTwinsStillbirthTrisomyTerm BirthPregnancy, MultipleDelivery, ObstetricApgar ScoreAmniotic FluidPrenatal CareCohort StudiesPre-EclampsiaProspective StudiesNuchal Translucency MeasurementIntensive Care Units, NeonatalMothersRetrospective StudiesPerinatal MortalityChromosome DisordersNondisjunction, GeneticAneuploidyFetal MacrosomiaChild DevelopmentChorionic Gonadotropin, beta Subunit, HumanPlacentaFetal HeartGastroschisisLive BirthPrenatal Exposure Delayed EffectsPregnancy-Associated Plasma Protein-AMaternal ExposureFetal WeightLogistic ModelsRetinopathy of PrematurityInfant, Newborn, Diseases