S0716 Real World Effectiveness and Safety of Ustekinumab for Ulcerative Colitis From Two Tertiary IBD Centers in the U.S. (October 2020) - Hong, Simon; Cleveland, Noa Krugliak; Akiyama, Shintaro; Zullow, Samantha; Yi, Yangtian; Shaffer, Seth; Malter, Lisa; Axelrad, Jordan E.; Chang, Shannon; Hudesman, David P; Rubin, David T.