AdenocarcinomaStomach NeoplasmsCardiaGastrectomyGastric MucosaEsophageal NeoplasmsHelicobacter pyloriCarcinoma, Signet Ring CellHelicobacter InfectionsImmunohistochemistryAdenocarcinoma, MucinousNeoplasm StagingTumor Markers, BiologicalMetaplasiaPrognosisEsophagogastric JunctionLinitis PlasticaGastritisLung NeoplasmsPancreatic NeoplasmsNeoplasms, Multiple PrimaryGene Expression Regulation, NeoplasticStomachLymphatic MetastasisTissue Array AnalysisAdenocarcinoma, PapillaryHMGB3 ProteinBarrett EsophagusCell Line, TumorCarcinoma, Pancreatic DuctalAdenocarcinoma, Bronchiolo-AlveolarNeoplasm InvasivenessPrecancerous ConditionsImmunoenzyme TechniquesGastrointestinal NeoplasmsGastritis, AtrophicStomach DiseasesAcanthosis NigricansGastroscopyCathepsin ECase-Control StudiesChief Cells, GastricSurvival RateKaplan-Meier EstimateTumor Cells, CulturedOpiumSurvival AnalysisRetrospective StudiesRNA, MessengerTreatment OutcomeDNA, NeoplasmNeoplasm ProteinsDisease ProgressionFluorouracilNeoplasm MetastasisFatal OutcomeColonic NeoplasmsLymph Node ExcisionBiopsyCarcinoma, Squamous CellButyrate Response Factor 1Reverse Transcriptase Polymerase Chain ReactionPolymerase Chain ReactionPepsinogen ANorisoprenoidsRisk FactorsKi-67 AntigenAbdominal NeoplasmsPeritoneal NeoplasmsTumor Suppressor Protein p53Peptic UlcerGastrinsCyclooxygenase 2Carcinoembryonic AntigenAntineoplastic Combined Chemotherapy ProtocolsAntigens, NeoplasmCell ProliferationMucinsEndoscopy, GastrointestinalMultivariate AnalysisApoptosisPepsinogen CAntigens, BacterialCisplatinKeratin-7Disease-Free SurvivalChromogranin AGene Expression ProfilingProportional Hazards ModelsMatrix Metalloproteinase 7Follow-Up StudiesAntineoplastic AgentsIncidenceCell Transformation, NeoplasticEndometrial NeoplasmsLoss of HeterozygosityIn Situ HybridizationCombined Modality TherapyTime FactorsGene Amplification