Gökhan KABAÇAM and Murat TÖRÜNER (2019) “How long should we treat patients with azathioprine/ 6-mercaptopurine before deciding that it is refractory to immunomodulatory treatment?”, Turkish Journal of Gastroenterology, 23(1), pp. 13–16. Available at: https://turkjgastroenterol.avesjournals.com/index.php/tjg/article/view/2598 (Accessed: 21 July 2025).