Chest PainPainPain ManagementChronic PainPain ThresholdPain MeasurementPain, PostoperativeBack PainChest TubesLow Back PainAngina PectorisPain ClinicsRadiography, ThoracicAbdominal PainPain, IntractableNeck PainElectrocardiographyThoracic WallPain, ReferredMicrovascular AnginaEmergency Service, HospitalPelvic PainThoraxCoronary AngiographyPain PerceptionMyocardial InfarctionFacial PainTomography, X-Ray ComputedProspective StudiesAcute PainTreatment OutcomeThoracic InjuriesExercise TestShoulder PainTime FactorsCoronary VasospasmFollow-Up StudiesTriageAcute Coronary SyndromePredictive Value of TestsMusculoskeletal PainPericarditisMass Chest X-RayAcute DiseaseTroponin TFlail ChestSensitivity and SpecificitySeverity of Illness IndexGastroesophageal RefluxCoronary DiseaseRetrospective StudiesQuestionnairesMyocardial IschemiaDyspneaAngina, UnstableRisk FactorsAnalgesicsEsophagusEsophageal Spasm, DiffuseTietze's SyndromeTroponin IEsophageal Motility DisordersManometryThoracic DiseasesFunnel ChestThoracic NeoplasmsChronic DiseaseEmergency Medical ServicesCardiology Service, HospitalCreatine KinaseNeuralgiaPneumothoraxNociceptive PainPrognosisTakotsubo CardiomyopathyEmergenciesCoronary Artery DiseaseSyndromeDiagnostic ErrorsBiological MarkersDepressionAnxietyPsychophysiologic DisordersRisk AssessmentDiagnostic Techniques, CardiovascularCoronary Care UnitsDeglutition DisordersEchocardiographyAnalgesics, OpioidMediastinal EmphysemaQuality of LifeCohort StudiesPrevalenceThoracotomyRibsPleural DiseasesChest Wall OscillationSternumLung DiseasesHospital Units