Coronary-Subclavian Steal SyndromeCoronary VesselsCoronary Artery DiseaseCoronary AngiographyCoronary Artery BypassCoronary CirculationAngioplasty, Balloon, CoronaryCoronary StenosisCoronary DiseaseArteriesCoronary VasospasmCoronary AneurysmMyocardial InfarctionCoronary ThrombosisCoronary RestenosisCoronary OcclusionRisk FactorsCoronary Artery Bypass, Off-PumpTreatment OutcomeMyocardial IschemiaStentsPulmonary ArteryElectrocardiographyPercutaneous Coronary InterventionProspective StudiesTime FactorsCalcinosisFollow-Up StudiesMammary ArteriesDogsVasodilator AgentsCarotid ArteriesUltrasonography, InterventionalVasodilationPredictive Value of TestsTomography, X-Ray ComputedMyocardial RevascularizationHemodynamicsFemoral ArteryRadial ArteryCardiac CatheterizationCoronary Care UnitsEndothelium, VascularSwineAngina, UnstableRisk AssessmentHeartRenal ArteryCoronary Vessel AnomaliesCerebral ArteriesRetrospective StudiesExercise TestMyocardiumMesenteric ArteriesNitroglycerinSeverity of Illness IndexPlatelet Aggregation InhibitorsEchocardiographyChest PainVasoconstrictionBlood PressureBasilar ArteryMucocutaneous Lymph Node SyndromeBiological MarkersMuscle, Smooth, VascularCollateral CirculationDipyridamolePostoperative ComplicationsSinus of ValsalvaBlood Flow VelocitySensitivity and SpecificityAdenosineTomography, Emission-Computed, Single-PhotonThoracic ArteriesCarotid Artery DiseasesIliac ArteryCardiovascular AgentsVentricular Function, LeftMyocardial Perfusion ImagingBrachial ArteryPrognosisAngina PectorisSaphenous VeinMultidetector Computed TomographyVascular CalcificationVertebral ArteryPlaque, AtheroscleroticInternal Mammary-Coronary Artery AnastomosisCardiopulmonary BypassMyocardial ReperfusionAngiographyErgonovineChi-Square DistributionAngina Pectoris, VariantThallium RadioisotopesRecurrenceSubclavian ArteryConstriction, PathologicVascular PatencyAcetylcholine