Coronary VesselsBasilar ArteryEndothelium, VascularMuscle RelaxationVasodilationArteriesCoronary Artery DiseaseCoronary Artery BypassPulmonary ArteryVasodilator AgentsNitric OxideCoronary AngiographyAcetylcholineNitroglycerinCoronary CirculationVasoconstrictionSheepNitroprussideCoronary DiseaseBrachial ArteryMuscle, Smooth, VascularVasoconstrictor AgentsCoronary StenosisAngioplasty, Balloon, CoronaryCerebral ArteriesVertebrobasilar InsufficiencyEndotheliumCarotid ArteriesRegional Blood FlowVertebral ArteryMesenteric ArteriesFemoral ArteryDose-Response Relationship, DrugNitric Oxide SynthaseRenal ArteryMyocardial InfarctionMammary ArteriesDogsCoronary VasospasmTime FactorsTreatment OutcomeRadial ArteryCoronary Artery Bypass, Off-PumpCoronary AneurysmIliac ArteryRisk FactorsTomography, X-Ray ComputedStentsCarotid Artery, InternalSwineFollow-Up StudiesCarotid Artery DiseasesProspective StudiesCoronary ThrombosisSubarachnoid HemorrhageMuscle ContractionMyocardial IschemiaHemodynamicsCerebral AngiographyCalcinosisSubclavian ArteryElectrocardiographyCoronary OcclusionRabbitsBrain Stem InfarctionsCoronary RestenosisMagnetic Resonance AngiographyEndothelium, CornealPredictive Value of TestsThoracic ArteriesArterial Occlusive DiseasesBlood PressureCarotid Artery, CommonNitroargininePotassium ChlorideVasospasm, IntracranialSplenic ArteryHepatic Artery15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidCoronary Vessel AnomaliesUltrasonography, InterventionalRetrospective StudiesAorta, ThoracicPapaverineMiddle Cerebral ArteryVasomotor SystemSerotoninCardiac CatheterizationAngiographyHeartMesenteric Artery, SuperiorAortaBiological FactorsMyocardiumMyocardial RevascularizationEnzyme InhibitorsCalciumIntracranial AneurysmOphthalmic ArteryRats, Sprague-Dawley