United Kingdom Barrett’s Oesophagus Registry;
UCL;
Regional Oesophagogastric Unit;
Royal Surrey County Hospital;
Department of Clinical and Experimental Medicine;
University of Surrey;
Division of Surgery and Interventional Science;
UCL;
Royal Free Campus;
Dysplasia; Barrett’s; esophagus; Esophageal; neoplasms; Public; health; Epidemiology; Surveillance;