Pregnancy ComplicationsPregnancyPregnancy OutcomePre-EclampsiaPregnancy Complications, CardiovascularHypertension, Pregnancy-InducedHypertensionPregnancy, AnimalPregnancy, EctopicPregnancy Trimester, FirstPregnancy Complications, HematologicPregnancy Complications, NeoplasticAbortion, SpontaneousFemale Urogenital Diseases and Pregnancy ComplicationsHypertension, PulmonaryPregnancy Trimester, ThirdFetal Growth RetardationPregnancy Trimester, SecondPlacentaPremature BirthAbruptio PlacentaePregnancy Complications, InfectiousPregnancy, MultiplePregnancy RateGestational AgePregnancy, TwinInfant, NewbornPregnancy, High-RiskPregnancy TrimestersUterine ArteryPregnancy TestsPlacenta DiseasesFetal DeathObstetric Labor, PrematureEclampsiaPostoperative ComplicationsRisk FactorsPregnancy ProteinsPregnancy in DiabeticsCivil DisordersDiabetes, GestationalCongenital AbnormalitiesTrophoblastsPregnancy, TubalPlacental CirculationCesarean SectionPreconception CareUterusPrenatal CareUltrasonography, PrenatalBirth WeightPregnancy in AdolescenceObstetric Labor ComplicationsStillbirthAbortion, HabitualParityMaternal AgeInfant, Small for Gestational AgeRetrospective StudiesHypertension, RenalHypertension, PortalBlood PressureProspective StudiesMaternal-Fetal ExchangePregnancy, UnplannedDelivery, ObstetricPregnancy, UnwantedPlacentationFertilization in VitroAntibodies, AntiphospholipidPlacental InsufficiencyCohort StudiesFetal DevelopmentAntihypertensive AgentsInfant, Low Birth WeightHypertension, RenovascularMultiple Birth OffspringReproductive Techniques, AssistedDeciduaMaternal WelfarePregnancy, ProlongedTreatment OutcomeOdds RatioPregnancy Complications, ParasiticAntiphospholipid SyndromeLogistic ModelsFetal Membranes, Premature RuptureHypertension, MalignantTime FactorsRisk AssessmentAbortion, InducedPrevalencePregnancy, AbdominalIncidencePregnancy MaintenanceCase-Control StudiesEmbryo ImplantationEmbryo TransferFollow-Up StudiesThrombophilia