EsophagusBarrett EsophagusEsophageal NeoplasmsEsophagoscopyEsophageal DiseasesEsophageal StenosisEsophagectomyEsophagogastric JunctionMetaplasiaGastroesophageal RefluxUpper ExtremityCardiaAdenocarcinomaEsophagoplastyMucous MembraneEsophagitisUpper Gastrointestinal TractPrecancerous ConditionsEsophagitis, PepticEsophageal PerforationPeristalsisManometryEsophageal FistulaCarcinoma, Squamous CellHypopharynxEndoscopy, Digestive SystemDeglutitionDimethylnitrosamineEsophageal Sphincter, LowerDeglutition DisordersHernia, HiatalEndoscopy, GastrointestinalEsophageal AchalasiaEsophagoscopesEsophageal Sphincter, UpperEndoscopyCausticsStomachStomach NeoplasmsFundoplicationHydrochloric AcidBiopsyDilatationForeign BodiesDiverticulum, EsophagealEsophageal AtresiaBurns, ChemicalLarynxDuodenogastric RefluxEosinophilic EsophagitisTracheoesophageal FistulaRetrospective StudiesGastroscopyDigestive System NeoplasmsTreatment OutcomeImmunohistochemistryEsophageal Motility DisordersEsophageal pH MonitoringRisk FactorsCineradiographyDigestive SystemBile RefluxGastrointestinal HemorrhageDuodenumFistulaAnastomosis, SurgicalLaryngopharyngeal RefluxGastrointestinal NeoplasmsTomography, X-Ray ComputedPressureNumismaticsDisease ProgressionNitrosaminesMediastinumUlcerTime FactorsGastric MucosaPharyngeal NeoplasmsFollow-Up StudiesCarcinoma, BasosquamousEpitheliumTongueGastrectomyHeartburnGastrointestinal DiseasesCase-Control StudiesProspective StudiesCatheter AblationThoraxBarium SulfateEsophagostomyEsophageal Spasm, DiffuseDiagnostic Techniques, Digestive SystemTracheaPrognosisNeoplasm StagingFatal OutcomeIncidenceTumor Markers, BiologicalNodose Ganglion