RT Journal Article SR Electronic T1 COVID-19 and its impact on endoscopy services: what is the threshold for missed malignant diagnosis? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1414 OP 1415 DO 10.1136/gutjnl-2020-322769 VO 70 IS 7 A1 Tony He A1 Michael B MacIsaac A1 Simon J Hume A1 Alexander J Thompson A1 Julien D Schulberg YR 2021 UL http://gut.bmj.com/content/70/7/1414.abstract AB