Gastroesophageal RefluxEsophageal Sphincter, LowerAdenocarcinomaBarrett EsophagusEsophageal NeoplasmsDuodenogastric RefluxEsophagusCardiaBile RefluxEsophagoscopyEsophagitis, PepticVesico-Ureteral RefluxPrecancerous ConditionsEsophagogastric JunctionMetaplasiaEsophagectomyStomach NeoplasmsEsophagitisCarcinoma, Squamous CellImmunohistochemistryTumor Markers, BiologicalLaryngopharyngeal RefluxAdenocarcinoma, MucinousDisease ProgressionPrognosisCase-Control StudiesGene Expression Regulation, NeoplasticNeoplasm StagingLung NeoplasmsFetuin-BRisk FactorsCell Line, TumorPancreatic NeoplasmsEsophageal pH MonitoringProton Pump InhibitorsEndoscopy, Digestive SystemAdenocarcinoma, PapillaryHeartburnCarcinoma, Pancreatic DuctalTissue Array AnalysisAdenocarcinoma, Bronchiolo-AlveolarManometryLoss of HeterozygosityIncidenceMucous MembraneVenous InsufficiencyDNA, NeoplasmBiopsyHernia, HiatalReverse Transcriptase Polymerase Chain ReactionTreatment OutcomeKaplan-Meier EstimateGene AmplificationCyclooxygenase 2EndoscopyRetrospective StudiesLymphatic MetastasisAneuploidyNeoadjuvant TherapySurvival RateFundoplicationHydrogen-Ion ConcentrationDeoxycholic AcidFollow-Up StudiesOligonucleotide Array Sequence AnalysisTumor Cells, CulturedCell Transformation, NeoplasticImmunoenzyme TechniquesSurvival AnalysisOdds RatioTime FactorsCarbonated BeveragesGastric Acidity DeterminationColonic NeoplasmsAntineoplastic AgentsNeoplasm InvasivenessProspective StudiesGene Expression ProfilingAnastomosis, SurgicalAntacidsDuodenumBile Acids and SaltsRNA, MessengerXeroderma Pigmentosum Group D ProteinCell ProliferationDNA MethylationApoptosisHelicobacter InfectionsCyclooxygenase 1Genes, p16Mice, NudeHelicobacter pyloriPolymerase Chain ReactionSEER ProgramNeoplasm ProteinsGastric AcidCombined Modality TherapyChromosomes, Human, Pair 17Varicose VeinsEndoscopy, Gastrointestinal