RT Journal Article SR Electronic T1 Reply JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 446 OP 446 DO 10.1136/gut.37.3.446 VO 37 IS 3 A1 Khulusi, S A1 Mendali, M A A1 Patel, P A1 Northfield, T C YR 1995 UL http://gut.bmj.com/content/37/3/446.1.abstract AB