Hospital Communication SystemsElectrocardiographyDecision Support Systems, ClinicalExpert SystemsReminder SystemsHospital Information SystemsDecision Making, Computer-AssistedMonitoring, PhysiologicElectrocardiography, AmbulatoryMedical Records Systems, ComputerizedExercise TestArrhythmias, CardiacEchocardiographyMagnetocardiographyVectorcardiographySignal Processing, Computer-AssistedChest PainHeart Conduction SystemMyocardial InfarctionSensitivity and SpecificityHypertrophy, Left VentricularHeart RatePredictive Value of TestsHeart AuscultationHeartCoronary AngiographyCoronary DiseaseProspective StudiesDipyridamoleMyocardial IschemiaDeath, Sudden, CardiacThalliumHeart DiseasesCardiotocographyHeart BlockPeripartum PeriodKinetocardiographyDobutamineCardiomyopathiesTachycardia, SinusTelemetryCardiologyAtrial FibrillationVentricular Premature ComplexesSyncopeAngina PectorisRadionuclide VentriculographyPrognosisTime FactorsWolff-Parkinson-White SyndromeTachycardia, VentricularBradycardiaTachycardia, SupraventricularCardiology Service, HospitalFollow-Up StudiesEmergency Medical TechniciansBundle-Branch BlockTroponin TCardiomyopathy, HypertrophicVentricular Dysfunction, LeftThallium RadioisotopesElectrodesHeart VentriclesCardiovascular AbnormalitiesRisk FactorsPhysical ExaminationAtrioventricular BlockHeart Function TestsReproducibility of ResultsCoronary Artery DiseaseVentricular Function, LeftPericarditisHeart MurmursAutonomic Nervous SystemTachycardiaPhonocardiographyRadiography, ThoracicIntraoperative ComplicationsDeath, SuddenTreatment OutcomeEchocardiography, DopplerBody Surface Potential MappingEchocardiography, StressPrevalenceCardiomyopathy, DilatedDiagnosis, Computer-AssistedTakotsubo CardiomyopathyPhysical ExertionBrugada SyndromeStroke VolumeHypertensionRisk AssessmentLong QT SyndromeSportsAngiocardiographyAnti-Arrhythmia AgentsRetrospective StudiesTomography, Emission-Computed, Single-PhotonHeart AtriaCardiotonic Agents