RT Journal Article SR Electronic T1 Gastrointestinal endoscopy during COVID-19: when less is more JF Frontline Gastroenterology JO Frontline Gastroenterol FD BMJ Publishing Group Ltd SP 256 OP 257 DO 10.1136/flgastro-2020-101492 VO 11 IS 4 A1 Cathryn Edwards A1 Ian D Penman A1 Mark Coleman YR 2020 UL http://fg.bmj.com/content/11/4/256.abstract AB