PT - JOURNAL ARTICLE ED - , TI - JournalScan AID - 10.1136/gut.2009.196394 DP - 2009 Nov 01 TA - Gut PG - 1545--1545 VI - 58 IP - 11 4099 - http://gut.bmj.com/content/58/11/1545.short 4100 - http://gut.bmj.com/content/58/11/1545.full SO - Gut2009 Nov 01; 58