RT Journal Article SR Electronic T1 Joint Advisory Group on Gastrointestinal Endoscopy (JAG) achieves enduring large-scale change JF Frontline Gastroenterology JO Frontline Gastroenterol FD BMJ Publishing Group Ltd SP 91 OP 92 DO 10.1136/flgastro-2018-101115 VO 10 IS 2 A1 Roland Valori YR 2019 UL http://fg.bmj.com/content/10/2/91.abstract AB