Fetal DeathLive BirthFetal MortalityPregnancyBirth WeightBirth RateInfant, NewbornPregnancy OutcomeStillbirthCause of DeathPremature BirthBirth CertificatesMaternal AgeCell DeathInfant MortalityGestational AgeAbortion, SpontaneousPregnancy ComplicationsInfant, Low Birth WeightDeath CertificatesCongenital AbnormalitiesPerinatal MortalityAbruptio PlacentaeHydrops FetalisAbortion, InducedPregnancy Complications, InfectiousColaFertilization in VitroDeathPregnancy RateBirth OrderVital StatisticsRisk FactorsPregnancy, High-RiskPregnancy, MultipleParitySex RatioPlacenta DiseasesReproductive Techniques, AssistedCohort StudiesEmbryo TransferPlacentaRetrospective StudiesFetal DiseasesDelivery, ObstetricAbnormalities, Drug-InducedAborted FetusPregnancy Trimester, SecondInfant, Small for Gestational AgeFetal Growth RetardationPregnancy Complications, CardiovascularPrenatal CareMaternal ExposureMaternal MortalityInfertilityPrenatal DiagnosisCesarean SectionMaternal-Fetal ExchangeAmniocentesisPlacental Function TestsUnited StatesUltrasonography, PrenatalMultiple Birth OffspringFetal ResorptionAgrochemicalsInfertility, FemaleParvoviridae InfectionsParvovirus B19, HumanObstetric Labor, PrematureFetusSingle Embryo TransferTwinsFetal MonitoringBirth IntervalsPregnancy Trimester, ThirdAutopsyOvulation InductionAmniotic FluidAbortion, HabitualRegistriesTime FactorsProspective StudiesPopulation SurveillanceOocyte RetrievalNeosporaFetal DevelopmentDeath, Sudden, CardiacApgar ScorePaternal ExposureFetofetal TransfusionCryopreservationHELLP SyndromePerinatal CarePre-EclampsiaSperm Injections, IntracytoplasmicBirth InjuriesAbortion, LegalHazardous WasteCoccidiosisPlacental Circulation