PARLAK, Erkan, Aysel ÜLKER, Canan ALKIM, Bilge TUNÇ, Ahmet TEZEL, and Ülkü DAĞLI. “The Efficacy of 5-ASA Preparations in Prevention of Postoperative Recurrence of Crohn’s Disease (Retrospective Assesstment)”. Turkish Journal of Gastroenterology 10, no. 3 (January 3, 1999): 276–279. Accessed January 1, 2026. https://turkjgastroenterol.org/index.php/tjg/article/view/1002.