EsophagectomyGastrointestinal NeoplasmsEsophagusEsophageal NeoplasmsBarrett EsophagusStomach NeoplasmsAdenocarcinomaEsophagoscopyCarcinoma, Squamous CellThoracoscopyPancreatic NeoplasmsEsophageal StenosisEsophageal DiseasesDigestive System NeoplasmsTumor Markers, BiologicalColonic NeoplasmsEsophagostomyNeoplasm StagingCell Line, TumorTreatment OutcomeColorectal NeoplasmsEsophagoplastyRetrospective StudiesAnastomosis, SurgicalEsophagogastric JunctionCombined Modality TherapyUpper Gastrointestinal TractSurvival RateNeoplasmsPrognosisEsophageal FistulaNeoplasm MetastasisPrecancerous ConditionsGastric FistulaFluorouracilRectal NeoplasmsThoracotomySurvival AnalysisPostoperative ComplicationsAntineoplastic Combined Chemotherapy ProtocolsFollow-Up StudiesCongresses as TopicGene Expression Regulation, NeoplasticTumor BurdenCarcinomaMetaplasiaAnastomotic LeakRisk FactorsCardiaNeoplasm ProteinsLymph Node ExcisionAntigens, Tumor-Associated, CarbohydrateProspective StudiesDihydrouracil Dehydrogenase (NADP)Esophageal AchalasiaAppetite StimulantsAntineoplastic AgentsTumor Necrosis Factor-alphaGastroesophageal RefluxIntestinal NeoplasmsDisease ProgressionStomachLung NeoplasmsAntigens, NeoplasmLyeDNA, NeoplasmLaparoscopyThoracoscopesMice, NudeTime FactorsMutationCarcinoembryonic AntigenEarly Detection of CancerLiver NeoplasmsRationalizationRNA, MessengerHernia, HiatalTumor Suppressor Protein p53GastrostomyReverse Transcriptase Polymerase Chain ReactionMucous MembraneEnteral NutritionJejunostomyChemotherapy, AdjuvantOvarian NeoplasmsImmunohistochemistryMedical OncologyGenes, Tumor SuppressorIranNeoplasm Recurrence, LocalCachexiaCell ProliferationAsbestosAntibodies, MonoclonalGenetic Predisposition to DiseaseNeoplasms, ExperimentalDNA MethylationGastrectomyIncidenceBreast Neoplasms