Barrett EsophagusEsophagusEsophageal NeoplasmsMetaplasiaPrecancerous ConditionsAdenocarcinomaGenes, MCCCardiaGastroesophageal RefluxEndoscopy, GastrointestinalEsophagoscopyDisease ProgressionImmunohistochemistryEsophagogastric JunctionEsophagectomyMucous MembraneHernia, HiatalEsophageal DiseasesPharmacy AdministrationEndoscopyEsophageal StenosisBiopsy