Nurcahya, I. G. N. M., and M. S. Wirawan. “Clinical Approach and Diagnosing Ulcerative Colitis in a 55 Years Old Man Patient: A Case Report”. International Journal of Research in Medical Sciences, vol. 11, no. 1, Dec. 2022, pp. 334-7, doi:10.18203/2320-6012.ijrms20223657.