Khan, M. J. ., A. ur . Rehman, F. . Sahrish, R. . Mukhtar, A. . Ilyas, and Z. . Aamir. “Clinical Features and Histological Features of Relapsed Patients of Ulcerative Colitis”. Pakistan Journal of Medical & Health Sciences, vol. 16, no. 02, Mar. 2022, p. 262, doi:10.53350/pjmhs22162262.