PT - JOURNAL ARTICLE AU - David Wingate TI - Year book of digestive diseases, 1988 AID - 10.1136/gut.30.7.1030-a DP - 1989 Jul 01 TA - Gut PG - 1030--1030 VI - 30 IP - 7 4099 - http://gut.bmj.com/content/30/7/1030.2.short 4100 - http://gut.bmj.com/content/30/7/1030.2.full SO - Gut1989 Jul 01; 30