PT - JOURNAL ARTICLE AU - B C Morson TI - Premalignant conditions of the gastrointestinal tract AID - 10.1136/gut.32.5.552-a DP - 1991 May 01 TA - Gut PG - 552--552 VI - 32 IP - 5 4099 - http://gut.bmj.com/content/32/5/552.2.short 4100 - http://gut.bmj.com/content/32/5/552.2.full SO - Gut1991 May 01; 32