PT - JOURNAL ARTICLE AU - B C Morson AU - L S Pang TI - Rectal biopsy as an aid to cancer control in ulcerative colitis. AID - 10.1136/gut.8.5.423 DP - 1967 Oct 01 TA - Gut PG - 423--434 VI - 8 IP - 5 4099 - http://gut.bmj.com/content/8/5/423.short 4100 - http://gut.bmj.com/content/8/5/423.full SO - Gut1967 Oct 01; 8