Chest PainAcute Chest SyndromeTriageEmergency Service, HospitalAcute DiseaseAnemia, Sickle CellTroponin TAcute Coronary SyndromeAngina PectorisMyocardial InfarctionTroponin IElectrocardiographyPainCoronary AngiographyTomography, X-Ray ComputedAngina, UnstablePericarditisSensitivity and SpecificityPredictive Value of TestsCoronary StenosisTroponinProspective StudiesBiological MarkersBostonCreatine Kinase, MB FormMyocardial IschemiaEmbolism, FatRisk AssessmentContrast MediaCoronary Artery DiseaseChronic PainPain ManagementThoraxTime FactorsHemoglobin SC DiseasePrognosisLung DiseasesPain ThresholdRisk FactorsAntisickling AgentsTietze's SyndromeSeverity of Illness IndexPain, PostoperativePain MeasurementSyndromeChest TubesBack PainLow Back PainPain ClinicsAbdominal PainRadiography, ThoracicChi-Square DistributionPain, IntractableNeck PainThoracic WallPain, ReferredMicrovascular AnginaSickle Cell TraitPelvic PainPain PerceptionInfarctionTreatment OutcomeHydroxyureaFacial PainHemoglobin, SickleRetrospective StudiesAcute PainFollow-Up StudiesPulmonary EmbolismThoracic InjuriesExercise TestCohort StudiesShoulder PainCoronary VasospasmMass Chest X-RayBlood TransfusionMusculoskeletal PainAneurysm, DissectingFlail ChestFetal HemoglobinROC CurveCoronary DiseaseHospitalizationAnalgesicsGastroesophageal RefluxEsophageal Spasm, DiffuseRespiratory InsufficiencyEsophagusFeverDyspneaEsophageal Motility DisordersThoracic DiseasesFunnel ChestThoracic NeoplasmsManometryCardiology Service, HospitalPneumothoraxCreatine KinaseNociceptive PainEmergency Medical Services