ArteriesRetinal VeinPulmonary ArteryRetinal ArteryCarotid ArteriesCerebral ArteriesRenal ArteryFemoral ArteryMesenteric ArteriesBasilar ArteryVenulesRetinal VesselsIliac ArteryVertebral ArteryCoronary Artery BypassPhotographyRadial ArteryCarotid Artery, InternalMammary ArteriesSubclavian ArteryArteriolesCarotid Artery DiseasesCoronary VesselsSplenic ArteryBrachial ArteryHepatic ArteryCarotid Artery, CommonCeliac ArteryOphthalmic ArteryMesenteric Artery, SuperiorUmbilical ArteriesMiddle Cerebral ArteryRenal Artery ObstructionThoracic ArteriesTemporal ArteriesBronchial ArteriesCoronary AngiographyVasodilationPopliteal ArteryUlnar ArteryAngiographyRetinal Artery OcclusionUterine ArteryVasoconstrictionRetinal DiseasesNeurofilament ProteinsMuscle, Smooth, VascularCarotid Artery, ExternalCoronary DiseaseBlood PressureCarotid Artery InjuriesTomography, X-Ray ComputedTreatment OutcomeEndothelium, VascularArterial Occlusive DiseasesTime FactorsStentsAneurysmConstriction, PathologicRegional Blood FlowRisk FactorsAirway ResistanceMagnetic Resonance AngiographyInfarction, Middle Cerebral ArteryAxillary ArteryCerebral AngiographyProspective StudiesCarotid Artery ThrombosisSingaporeVasodilator AgentsFollow-Up StudiesMeningeal ArteriesAxial Length, EyeCoronary CirculationMethacholine ChlorideCarotid StenosisDogsVascular PatencyHemodynamicsAxonsBronchoconstrictionAngiography, Digital SubtractionMyelin SheathCircle of WillisMicrocirculationRetrospective StudiesMaxillary ArteryVasoconstrictor AgentsBronchoconstrictor AgentsAngioplasty, BalloonCerebrovascular CirculationCarotid Artery, Internal, DissectionIntermediate FilamentsVasomotor SystemNitric OxideCoronary Artery Bypass, Off-PumpInternal Mammary-Coronary Artery AnastomosisCoronary StenosisPia MaterBronchial Provocation Tests