Nurcahya, I.G.N.M. and Wirawan, M.S. 2022. Clinical approach and diagnosing ulcerative colitis in a 55 years old man patient: a case report. International Journal of Research in Medical Sciences. 11, 1 (Dec. 2022), 334–337. DOI:https://doi.org/10.18203/2320-6012.ijrms20223657.