IBD LIVE Case Series: Case 9: Do Race and Extraintestinal Manifestations Affect Treatment of Severe Crohn's Colitis?. Issue 4 (19th March 2018) - Proksell, Siobhan S; Greer, Julia B; Theisen, Brian K; Davis, Peter L; Rosh, Joel R; Keljo, David J; Goyal, Alka; Shah, Samir A; Brand, Myron H; Herfarth, Hans H; Cross, Raymond K; Siegel, Corey A; et al.