PT - JOURNAL ARTICLE AU - Riley, S A AU - Mani, V AU - Goodman, M J TI - Reply AID - 10.1136/gut.31.8.959-c DP - 1990 Aug 01 TA - Gut PG - 959--960 VI - 31 IP - 8 4099 - http://gut.bmj.com/content/31/8/959.4.short 4100 - http://gut.bmj.com/content/31/8/959.4.full SO - Gut1990 Aug 01; 31