RT Journal Article SR Electronic T1 Reply JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 875 OP 875 DO 10.1136/gut.29.6.875 VO 29 IS 6 A1 Neoptolemos, John P A1 Carr-Locke, D L YR 1988 UL http://gut.bmj.com/content/29/6/875.1.abstract AB