PT - JOURNAL ARTICLE AU - Maxton, D G AU - Morris, J A AU - Whorwell, P J TI - Reply AID - 10.1136/gut.33.3.425 DP - 1992 Mar 01 TA - Gut PG - 425--425 VI - 33 IP - 3 4099 - http://gut.bmj.com/content/33/3/425.1.short 4100 - http://gut.bmj.com/content/33/3/425.1.full SO - Gut1992 Mar 01; 33