RT Journal Article SR Electronic T1 Gastroenterology 2021: from the heart of the COVID-19 pandemic JF Frontline Gastroenterology JO Frontline Gastroenterol FD BMJ Publishing Group Ltd SP 249 OP 251 DO 10.1136/flgastro-2021-101799 VO 12 IS 3 A1 Oliver D Tavabie A1 Jennie Clough YR 2021 UL http://fg.bmj.com/content/12/3/249.abstract AB