Barrett EsophagusEsophagusEsophageal NeoplasmsMetaplasiaPrecancerous ConditionsAdenocarcinomaGenes, MCCCardiaGastroesophageal RefluxEndoscopy, GastrointestinalEsophagoscopyEsophageal DiseasesEsophagogastric JunctionDisease ProgressionMucous MembraneEsophageal StenosisEsophagectomyImmunohistochemistryHernia, HiatalEsophagitisEsophagitis, PepticEsophageal PerforationPeristalsisEndoscopyManometryDeglutition DisordersPharmacy AdministrationEsophagoplastyBiopsyEsophageal AchalasiaStomach NeoplasmsEsophageal FistulaDilatationDeglutition