RT Journal Article SR Electronic T1 Sir Francis Avery Jones at eighty JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 125 OP 125 DO 10.1136/gut.32.2.125 VO 32 IS 2 YR 1991 UL http://gut.bmj.com/content/32/2/125.abstract AB