DOLAR, M. E. (1998) “Serum cytokine levels in ulcerative colits: Their relationship to disease activity and circulating acute phase reactants”, Turkish Journal of Gastroenterology, 9(4), pp. 370–373. Available at: https://www.turkjgastroenterol.org/index.php/tjg/article/view/928 (Accessed: 1 January 2026).