Esophagogastric JunctionAdenocarcinomaEsophageal NeoplasmsGastroesophageal RefluxCardiaStomach NeoplasmsHernia, HiatalBarrett EsophagusManometryEsophagectomyEsophagusEsophageal AchalasiaMetaplasiaEsophagostomyEsophageal Sphincter, LowerGastrectomyFundoplicationEsophagoscopyEsophageal Motility DisordersEsophageal DiseasesDeglutitionGap JunctionsIntercellular JunctionsPeristalsisTight JunctionsStomachEndoscopy, GastrointestinalNeoplasm StagingEsophageal pH MonitoringTreatment OutcomePressurePrognosisSurvival RateFluorouracilEsophageal StenosisAdherens JunctionsCisplatinNeuromuscular JunctionMucous MembraneAntineoplastic Combined Chemotherapy ProtocolsCombined Modality TherapyEsophagitisLymph Node ExcisionEsophageal and Gastric VaricesLaparoscopyTaxoidsNeoadjuvant TherapyDilatationAnastomosis, SurgicalProton Pump InhibitorsCarcinoma, Squamous CellDeglutition DisordersEsophagitis, PepticLymphatic MetastasisHeartburnDisease-Free SurvivalLaryngopharyngeal RefluxSurvival AnalysisLaryngitisEndoscopy, Digestive SystemDidelphisGastrostomyFollow-Up StudiesConnexinsEsophageal FistulaGastrointestinal HemorrhageGastric FistulaAdenocarcinoma, Mucinous