Feuerstein J, Isaacs K, Schneider Y, Siddique S, Falck-Ytter Y, Singh S, Chachu K, Day L, Lebwohl B, Muniraj T, Patel A, Peery A, Shah R, Sultan S, Singh H, Singh S, Spechler S, Su G, Thrift A, Weiss J, Weizman A, Feuerstein J, Singh S, Isaacs K, Schneider Y, Falck-Ytter Y, Siddique S, Allegretti J, Terdiman J, Singh S, Siddique S. AGA Clinical Practice Guidelines on the Management of Moderate to Severe Ulcerative Colitis. Gastroenterology 2020, 158: 1450-1461. PMID: 31945371, PMCID: PMC7175923, DOI: 10.1053/j.gastro.2020.01.006.Peer-Reviewed Original Research