Angina, UnstableAngina PectorisAngina Pectoris, VariantMyocardial InfarctionAngina, StableCoronary AngiographyAtherectomy, CoronaryCoronary DiseaseMyocardial IschemiaElectrocardiographyAngioplasty, Balloon, CoronaryMicrovascular AnginaAcute Coronary SyndromeCoronary Artery DiseaseCoronary ThrombosisMyocardial RevascularizationTroponin TProspective StudiesPlatelet Aggregation InhibitorsCoronary Artery BypassHirudin TherapyChest PainCoronary VesselsFollow-Up StudiesSyndromeRecurrenceTreatment OutcomePrognosisCoronary VasospasmAspirinElectrocardiography, AmbulatoryRisk FactorsPlatelet Glycoprotein GPIIb-IIIa ComplexC-Reactive ProteinFibrinopeptide ABiological MarkersAcute DiseaseCreatine KinaseLudwig's AnginaHeparinErgonovineExercise TestIsosorbide DinitrateEnoxaparinDouble-Blind MethodNadroparinTime FactorsAnticoagulantsPredictive Value of TestsNitroglycerinDalteparinRisk AssessmentTroponinFibrinolytic AgentsCoronary Care UnitsStentsHirudinsHemorrhageTroponin IAngioscopyCoronary StenosisDipyridamoleCreatine Kinase, MB FormThrombolytic TherapyUltrasonography, InterventionalHospitalizationRetrospective StudiesVectorcardiographyCardiac CatheterizationImmunoglobulin Fab FragmentsAdrenergic beta-AntagonistsNicorandilDrug Therapy, CombinationVasodilator AgentsCardiovascular AgentsCardiologyCoronary CirculationMultivariate AnalysisIodobenzenesChi-Square DistributionSeverity of Illness IndexPartial Thromboplastin TimeSurvival AnalysisAntithrombinsTiclopidineThallium RadioisotopesRupture, SpontaneousProportional Hazards ModelsSensitivity and SpecificityCounterpulsationInfusions, IntravenousAcetanilidesCoronary RestenosisRegression AnalysisFibrinolysisIncidenceNeopterinAntithrombin IIIDeath, Sudden, CardiacRisk