Berinstein JA, Sheehan JL, Dias M, Berinstein EM, Steiner CA, Johnson LA, Regal RE, Allen JI, Cushing KC, Stidham RW, Bishu S, Kinnucan JAR, Cohen-Mekelburg SA, Waljee AK, Higgins PDR. Tofacitinib for Biologic-Experienced Hospitalized Patients With Acute Severe Ulcerative Colitis: A Retrospective Case-Control Study. Clin Gastroenterol Hepatol. 2021 10; 19(10):2112-2120.e1.