ElectrocardiographyElectrocardiography, AmbulatoryProtein Sorting SignalsExercise TestArrhythmias, CardiacEchocardiographyMagnetocardiographySignal Processing, Computer-AssistedVectorcardiographySignal TransductionChest PainHeart Conduction SystemMyocardial InfarctionSensitivity and SpecificityHypertrophy, Left VentricularHeart RateHeartHeart AuscultationPredictive Value of TestsCoronary AngiographyCoronary DiseaseDipyridamoleDeath, Sudden, CardiacMyocardial IschemiaThalliumHeart DiseasesProspective StudiesHeart BlockCardiotocographyPeripartum PeriodKinetocardiographyDobutamineCardiomyopathiesTachycardia, SinusTime FactorsTelemetryMonitoring, PhysiologicCardiologyAtrial FibrillationSyncopeVentricular Premature ComplexesAngina PectorisRadionuclide VentriculographyPrognosisWolff-Parkinson-White SyndromeTachycardia, VentricularBradycardiaTachycardia, SupraventricularCardiology Service, HospitalFollow-Up StudiesEmergency Medical TechniciansBundle-Branch BlockTroponin TCardiomyopathy, HypertrophicElectrodesHeart VentriclesVentricular Dysfunction, LeftThallium RadioisotopesCardiovascular AbnormalitiesMolecular Sequence DataAtrioventricular BlockHeart Function TestsPhysical ExaminationRisk FactorsCoronary Artery DiseaseVentricular Function, LeftHeart MurmursPericarditisAutonomic Nervous SystemPhonocardiographyReproducibility of ResultsTachycardiaAmino Acid SequenceRadiography, ThoracicBody Surface Potential MappingEchocardiography, DopplerDeath, SuddenDiagnosis, Computer-AssistedCardiomyopathy, DilatedIntraoperative ComplicationsEchocardiography, StressTakotsubo CardiomyopathyBrugada SyndromePhysical ExertionStroke VolumeLong QT SyndromeTreatment OutcomeHypertensionHeart AtriaCardiotonic AgentsMyocardiumPrevalenceAngiocardiographySportsAnti-Arrhythmia AgentsTomography, Emission-Computed, Single-PhotonRisk AssessmentCreatine KinaseNuclear Localization SignalsPacemaker, Artificial