Weissman S, Saleem S, Aldulaimi D. Landmark studies and emerging strategies for the management of acute severe ulcerative colitis. Gastroenterol Hepatol Bed Bench [Internet]. 2019 Jun. 11 [cited 2024 Apr. 27];12(3):179-82. Available from: https://journals.sbmu.ac.ir/ghfbb/index.php/ghfbb/article/view/1655