PT - JOURNAL ARTICLE ED - , TI - Correction AID - 10.1136/gut.26.5.540-b DP - 1985 May 01 TA - Gut PG - 540--540 VI - 26 IP - 5 4099 - http://gut.bmj.com/content/26/5/540.3.short 4100 - http://gut.bmj.com/content/26/5/540.3.full SO - Gut1985 May 01; 26