Pardi, Darrell S Ursodeoxycholic acid as a chemopreventive agent in patients with ulcerative colitis and primary sclerosing cholangitis. [electronic resource] - Gastroenterology Apr 2003 - 889-93 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0016-5085 Standard No.: 10.1053/gast.2003.50156 doi Subjects--Topical Terms: AdultAgedAminosalicylic Acids--therapeutic useAnti-Inflammatory Agents, Non-Steroidal--therapeutic useCholagogues and Choleretics--therapeutic useCholangitis, Sclerosing--drug therapyColitis, Ulcerative--drug therapyColonic Neoplasms--epidemiologyDisease-Free SurvivalFemaleFolic Acid--therapeutic useHumansIncidenceMaleMiddle AgedRisk FactorsUrsodeoxycholic Acid--therapeutic use