RT Journal Article SR Electronic T1 John Lennard-Jones 1927–2019: physician and gastroenterologist JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1137 OP 1138 DO 10.1136/gutjnl-2019-319047 VO 68 IS 7 A1 Michael Farthing YR 2019 UL http://gut.bmj.com/content/68/7/1137.abstract AB