AB142. SOH21AS077. Implementation of the new British Society of Gastroenterology (BSG) 2020 Post-polypectomy Surveillance Guideline is associated with cost savings and capacity improvements - Fahey, Brian; Rogers, Ailin; Varley, Rachel; O’Toole, Dermot; McKiernan, Susan; McCormick, Paul; Mehigan, Brian; MacCarthy, Finbar; Kevans, David; Dunne, Cara; Larkin, John; Hartery, Karen (Mesentery and Peritoneum, 2021)