EsophagusBarrett EsophagusMetaplasiaEsophagoscopyAdenocarcinomaPrecancerous ConditionsEsophageal NeoplasmsCardiaGastroesophageal RefluxEsophagogastric JunctionEsophagectomyGenes, MCCMucous MembraneHernia, HiatalEndoscopy, GastrointestinalEsophageal DiseasesPharmacy AdministrationEsophageal StenosisEndoscopyEsophagoplastyBiopsyEsophagitisChromosomes, Human, Pair 5Chromosomes, Human, Pair 17Stomach NeoplasmsImmunohistochemistryEsophagitis, PepticDisease ProgressionEsophageal PerforationPeristalsisLoss of HeterozygosityManometryTumor Markers, BiologicalEsophageal FistulaCarcinoma, Squamous CellDimethylnitrosamineEsophageal Sphincter, LowerDeglutitionRisk FactorsPrognosisHypopharynxEndoscopy, Digestive SystemDeglutition DisordersEsophageal AchalasiaEsophagoscopesGene Expression Regulation, NeoplasticCausticsPolymerase Chain ReactionStomachFundoplicationEsophageal Sphincter, UpperEsophageal AtresiaHydrochloric AcidDiverticulum, EsophagealDilatationForeign BodiesBurns, ChemicalTreatment OutcomeDuodenogastric RefluxEosinophilic EsophagitisUpper Gastrointestinal TractTracheoesophageal FistulaEsophageal Motility DisordersRetrospective StudiesCineradiographyEsophageal pH MonitoringBile RefluxDigestive System NeoplasmsGastrointestinal NeoplasmsAnastomosis, SurgicalFistulaNumismaticsDigestive SystemNitrosaminesMediastinumLaryngopharyngeal RefluxLarynxUlcerGastrectomyTime FactorsGastroscopyCatheter AblationCarcinoma, BasosquamousCase-Control StudiesDuodenumFollow-Up Studies