Amrollah Sharifi, Homayoon Vahedi, Mohammad Reza Honarvar, Taghi Amiriani, Zeinab Nikniaz, Esmaeil Yousefi Rad, et al. Vitamin D decreases CD40L gene expression in ulcerative colitis patients: A randomized, double-blinded, placebo-controlled trial. Turkish Journal of Gastroenterology [Internet]. 2020 Mar. 4 [cited 2025 Jul. 31];31(2):99-104. Available from: https://tjg.avesjournals.com/index.php/tjg/article/view/3850