Angina PectorisAngina, UnstableAngina Pectoris, VariantAngina, StableNitrate ReductaseNitroglycerinCounterpulsationCoronary AngiographyMicrovascular AnginaMyocardial InfarctionExercise TestIsosorbide DinitrateCoronary DiseaseElectrocardiographyCoronary VasospasmOxyfedrineCoronary Artery DiseaseMyocardial IschemiaErgonovineCoronary VesselsAmino AlcoholsAdrenergic beta-AntagonistsNitrate Reductase (NADH)Follow-Up StudiesSilver NitrateProspective StudiesChest PainAngioplasty, Balloon, CoronaryNifedipineRisk FactorsPhysical ExertionMetoprololAtherectomy, CoronaryDouble-Blind MethodPropranololAcetanilidesMyocardial RevascularizationCineangiographyPractololNicorandilHeart RateVasodilator AgentsAcute Coronary SyndromeAngiocardiographyBiological MarkersCoronary Artery BypassTreatment OutcomeCoronary CirculationOxprenololPhonocardiographyElectrocardiography, AmbulatoryClinical Trials as TopicPrognosisTime FactorsSympatholyticsPlaque, AtheroscleroticCalcium Channel BlockersLudwig's AnginaPropiophenonesAtenololVerapamilUltrasonography, InterventionalBlood PressurePentaerythritol TetranitrateC-Reactive ProteinCoronary StenosisPlacebosSpinal Cord StimulationCardiovascular AgentsPropanolaminesHemodynamicsPredictive Value of TestsLaser TherapyFibrinolysisSeverity of Illness IndexRecurrenceDrug ToleranceTroponin TCardiac CatheterizationElectric Stimulation TherapyLabetalolExercise ToleranceCollateral CirculationNitrate Reductase (NAD(P)H)HeartNeopterinCoronary ThrombosisDelayed-Action PreparationsTrimetazidineDrug Therapy, CombinationChronic DiseaseDiltiazemPindololEye ManifestationsChloratesDiagnostic Techniques, CardiovascularPrenylamineIndoraminStentsStroke Volume