Pregnancy ComplicationsPregnancyCardiovascular DiseasesRisk FactorsPregnancy OutcomePre-EclampsiaHypertension, Pregnancy-InducedPregnancy Complications, CardiovascularPregnancy Complications, HematologicFemale Urogenital Diseases and Pregnancy ComplicationsPregnancy Trimester, FirstAbortion, SpontaneousPregnancy, EctopicFetal Growth RetardationPregnancy Complications, NeoplasticAbruptio PlacentaePremature BirthPlacentaPregnancy, AnimalPostoperative ComplicationsPregnancy Trimester, SecondUterine ArteryPregnancy Trimester, ThirdInfant, NewbornCivil DisordersProspective StudiesPlacenta DiseasesPregnancy Complications, InfectiousCohort StudiesObstetric Labor, PrematureEclampsiaPregnancy, TwinGestational AgeDiabetes, GestationalRetrospective StudiesPlacental CirculationCongenital AbnormalitiesFetal DeathTrophoblastsPreconception CareRisk AssessmentPregnancy, High-RiskObstetric Labor ComplicationsCesarean SectionPregnancy, MultiplePrevalenceIncidenceBirth WeightPrenatal CareStillbirthInfant, Small for Gestational AgeOdds RatioUterusAbortion, HabitualLogistic ModelsUltrasonography, PrenatalParityMaternal AgePregnancy ProteinsFollow-Up StudiesCase-Control StudiesPregnancy RateAntibodies, AntiphospholipidBiological MarkersHomocysteinePlacental InsufficiencyUnited StatesPregnancy TrimestersTreatment OutcomePlacentationDelivery, ObstetricMultiple Birth OffspringMaternal-Fetal ExchangeHypertensionPregnancy TestsTime FactorsCross-Sectional StudiesPregnancy in DiabeticsInfant, Low Birth WeightQuestionnairesFetal DevelopmentDiabetes ComplicationsAge FactorsAntiphospholipid SyndromePregnancy, TubalSmokingMaternal WelfareReproductive Techniques, AssistedObesityFetal Membranes, Premature RuptureThrombophiliaFertilization in VitroBlood PressurePregnancy in AdolescenceBody Mass IndexDiabetes MellitusAtherosclerosisMultivariate AnalysisDiabetes Mellitus, Type 2Sex Factors