PT - JOURNAL ARTICLE AU - Greenberg, G R AU - Jeejeebhoy, K N TI - Reply AID - 10.1136/gut.30.3.422-a DP - 1989 Mar 01 TA - Gut PG - 422--423 VI - 30 IP - 3 4099 - http://gut.bmj.com/content/30/3/422.2.short 4100 - http://gut.bmj.com/content/30/3/422.2.full SO - Gut1989 Mar 01; 30