Uterine ArteryArteriesUterusUterine Artery EmbolizationPlacental CirculationUltrasonography, DopplerPre-EclampsiaPulsatile FlowPregnancyUltrasonography, Doppler, PulsedUltrasonography, Doppler, ColorUltrasonography, PrenatalPulmonary ArteryLeiomyomaPregnancy Trimester, SecondUmbilical ArteriesPregnancy, AnimalFetal Growth RetardationMesenteric ArteriesCarotid ArteriesUterine NeoplasmsCerebral ArteriesRenal ArteryFemoral ArteryPregnancy Trimester, FirstBasilar ArteryIliac ArteryRegional Blood FlowVertebral ArteryCoronary Artery BypassPregnancy, High-RiskSheepBlood Flow VelocityEmbolization, TherapeuticHypertension, Pregnancy-InducedVasoconstrictionRadial ArteryMammary ArteriesVascular ResistanceMenorrhagiaCarotid Artery, InternalUterine HemorrhageVasodilationSubclavian ArteryPregnancy-Associated Plasma Protein-APlacental InsufficiencyGestational AgeCarotid Artery DiseasesSplenic ArteryBrachial ArteryMiddle Cerebral ArteryPregnancy OutcomeMuscle, Smooth, VascularAbruptio PlacentaeVasoconstrictor AgentsHepatic ArteryCarotid Artery, CommonProspective StudiesCoronary VesselsAngiographyPregnancy Trimester, ThirdCeliac ArteryOphthalmic ArteryVasodilator AgentsPregnancy Complications, CardiovascularMesenteric Artery, SuperiorEndothelium, VascularPregnancy, EctopicRenal Artery ObstructionThoracic ArteriesLigationTemporal ArteriesTreatment OutcomeSensitivity and SpecificityBronchial ArteriesPlacentaInfant, Small for Gestational AgePopliteal ArteryUlnar ArteryIntrauterine Devices, CopperPredictive Value of TestsDiethylcarbamazineCoronary AngiographyBlood PressureRheologyCarotid Artery, ExternalNorepinephrineNitric OxideHysterectomyPhenylephrineLaser-Doppler FlowmetryAltitudeUterine ContractionPhorbol 12,13-DibutyrateReceptor Activity-Modifying ProteinsPlacentationPregnancy ProteinsCarotid Artery InjuriesArterial Occlusive DiseasesReceptors, Adrenergic, alpha-1