Esophagogastric JunctionAdenocarcinomaStomach NeoplasmsEsophageal NeoplasmsGastroesophageal RefluxCardiaHernia, HiatalEsophagusBarrett EsophagusEsophagoscopyEsophageal DiseasesManometryEsophageal pH MonitoringMetaplasiaFundoplicationEsophagectomyEsophageal AchalasiaStomachGap JunctionsFluorouracilIntercellular JunctionsCisplatinTreatment OutcomeGastrectomyTight JunctionsEsophagitisAntineoplastic Combined Chemotherapy ProtocolsLaparoscopyNeoplasm StagingTaxoidsProton Pump InhibitorsEsophageal Sphincter, LowerEsophagitis, PepticHeartburnLaryngopharyngeal RefluxSurvival RateLaryngitisAdherens JunctionsEndoscopy, Digestive SystemPrognosisNeuromuscular JunctionCombined Modality TherapyDisease-Free SurvivalCarcinoma, Squamous Cell