İbrahim Koral ÖNAL (2019) “The value of fecal calprotectin as a marker of intestinal inflammation in patients with ulcerative colitis”, Turkish Journal of Gastroenterology, 23(5), pp. 509–514. Available at: https://turkjgastroenterol.avesjournals.com/index.php/tjg/article/view/2690 (Accessed: 12 July 2025).