PT - JOURNAL ARTICLE AU - Nolan, N P M AU - O'Briain, D S TI - Reply AID - 10.1136/gut.29.5.695 DP - 1988 May 01 TA - Gut PG - 695--695 VI - 29 IP - 5 4099 - http://gut.bmj.com/content/29/5/695.1.short 4100 - http://gut.bmj.com/content/29/5/695.1.full SO - Gut1988 May 01; 29