Graft Occlusion, VascularCoronary Artery BypassCoronary Artery DiseaseCoronary VesselsMammary ArteriesCoronary AngiographyThoracic ArteriesInternal Mammary-Coronary Artery AnastomosisVascular PatencyCoronary CirculationSaphenous VeinCoronary DiseaseArteriesRadial ArteryAngioplasty, Balloon, CoronaryTreatment OutcomeCoronary StenosisVascular GraftingFemoral ArteryTime FactorsFollow-Up StudiesArterial Occlusive DiseasesPostoperative ComplicationsGraft SurvivalCoronary OcclusionMyocardial InfarctionBlood Vessel ProsthesisCoronary Artery Bypass, Off-PumpReoperationPolytetrafluoroethyleneBlood Vessel Prosthesis ImplantationVeinsGastroepiploic ArteryVascular Surgical ProceduresProspective StudiesCoronary VasospasmStentsPopliteal ArteryRisk FactorsTomography, X-Ray ComputedRetrospective StudiesMyocardial RevascularizationCoronary AneurysmAmputationPulmonary ArteryIschemiaCarotid ArteriesSubclavian ArteryCoronary ThrombosisCerebral ArteriesLegTherapeutic OcclusionEpigastric ArteriesMyocardial IschemiaDogsAngina PectorisAnastomosis, SurgicalElectrocardiographyPolyethylene TerephthalatesSubclavian Steal SyndromeCoronary RestenosisPopliteal VeinThrombosisCalcinosisTissue and Organ HarvestingRenal ArteryHemodynamicsRisk AssessmentTibial ArteriesCoronary Vessel AnomaliesVasodilationAspirinPredictive Value of TestsVasodilator AgentsRetinal Artery OcclusionIliac ArteryBlood Flow VelocityAngioplasty, BalloonMesenteric ArteriesBasilar ArterySpasmFemoral VeinUltrasonography, InterventionalEndothelium, VascularInguinal CanalTransplantsSwineLower ExtremityBalloon OcclusionCarotid Artery, InternalCardiopulmonary BypassPeripheral Vascular DiseasesPercutaneous Coronary InterventionCardiac CatheterizationCarotid Artery DiseasesCollateral CirculationCoronary-Subclavian Steal SyndromeLimb SalvageVertebral ArteryAngiography