PT - JOURNAL ARTICLE ED - , TI - JournalScan DP - 2005 Apr 01 TA - Gut PG - 564--564 VI - 54 IP - 4 4099 - http://gut.bmj.com/content/54/4/564.short 4100 - http://gut.bmj.com/content/54/4/564.full SO - Gut2005 Apr 01; 54