title: Endoscopic surveillance in Barrett's oesophagus.
authors.forename: J
authors.initials: J
authors.lastname: Ryan
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis*; D001471:Barrett Esophagus / Q000473:pathology*; D004938:Esophageal Neoplasms / Q000175:diagnosis*; D004945:Esophagoscopy; D006801:Humans; D011159:Population Surveillance / Q000379:methods*; D011230:Precancerous Conditions / Q000473:pathology*