Barrett EsophagusEsophagusEsophageal NeoplasmsMetaplasiaPrecancerous ConditionsGenes, MCCAdenocarcinomaCardiaGastroesophageal RefluxEndoscopy, GastrointestinalEsophagoscopyDisease ProgressionImmunohistochemistryProtein PrecursorsEsophagogastric JunctionEsophagectomyMucous MembraneHernia, HiatalEsophageal DiseasesPharmacy AdministrationEsophageal StenosisEndoscopyAmyloid beta-Protein Precursor