RT Journal Article SR Electronic T1 New artificial intelligence system: first validation study versus experienced endoscopists for colorectal polyp detection JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 799 OP 800 DO 10.1136/gutjnl-2019-319914 VO 69 IS 5 A1 Cesare Hassan A1 Michael B Wallace A1 Prateek Sharma A1 Roberta Maselli A1 Vincenzo Craviotto A1 Marco Spadaccini A1 Alessandro Repici YR 2020 UL http://gut.bmj.com/content/69/5/799.abstract AB