PT - JOURNAL ARTICLE ED - , TI - Summary AID - 10.1136/gut.51.suppl_5.v28 DP - 2002 Oct 01 TA - Gut PG - v28--v28 VI - 51 IP - suppl 5 4099 - http://gut.bmj.com/content/51/suppl_5/v28.short 4100 - http://gut.bmj.com/content/51/suppl_5/v28.full SO - Gut2002 Oct 01; 51