Angina PectorisAngina, UnstableAngina Pectoris, VariantAngina, StableMicrovascular AnginaLudwig's AnginaCoronary VasospasmCoronary AngiographyMyocardial InfarctionErgonovineCoronary DiseaseElectrocardiographyMyocardial IschemiaExercise TestNitroglycerinCoronary Artery DiseaseCounterpulsationAcetanilidesIsosorbide DinitrateCoronary VesselsChest PainAngioplasty, Balloon, CoronaryCoronary Artery BypassMyocardial RevascularizationFollow-Up StudiesProspective StudiesAtherectomy, CoronaryTreatment OutcomeElectrocardiography, AmbulatoryRisk FactorsAcute Coronary SyndromeDouble-Blind MethodRecurrenceCoronary CirculationCardiovascular AgentsPrognosisVasodilator AgentsTime FactorsCoronary ThrombosisAdrenergic beta-AntagonistsNicorandilPlatelet Aggregation InhibitorsBiological MarkersCoronary StenosisC-Reactive ProteinTroponin TCardiac CatheterizationPredictive Value of TestsSyndromeNifedipineCalcium Channel BlockersStentsAspirinPhysical ExertionOxyfedrineHeart RateChronic DiseaseSeverity of Illness IndexFibrinopeptide AHirudin TherapyExercise ToleranceAngiocardiographyAcute DiseaseUltrasonography, InterventionalCollateral CirculationCreatine KinaseRisk AssessmentAtenololLaser TherapyTrimetazidineDipyridamoleRetrospective StudiesAngioscopyIodobenzenesDrug Therapy, CombinationMetoprololHeartCineangiographyDiltiazemBlood PressureTomography, Emission-Computed, Single-PhotonIschemic Preconditioning, MyocardialCoronary Care UnitsPlatelet Glycoprotein GPIIb-IIIa ComplexChi-Square DistributionMultivariate AnalysisNitratesHeparinThallium RadioisotopesPropranololClinical Trials as TopicHemodynamicsHospitalizationPlaque, AtheroscleroticPercutaneous Coronary InterventionAnticoagulantsHeart Function TestsSpasmProportional Hazards ModelsEnoxaparin