PT - JOURNAL ARTICLE AU - Ingvar Bjarnason AU - T J Peters TI - Reply AID - 10.1136/gut.25.8.910 DP - 1984 Aug 01 TA - Gut PG - 910--911 VI - 25 IP - 8 4099 - http://gut.bmj.com/content/25/8/910.short 4100 - http://gut.bmj.com/content/25/8/910.full SO - Gut1984 Aug 01; 25