Corrigendum: Budesonide Multimatrix Is Efficacious for Mesalamine-refractory, Mild to Moderate Ulcerative Colitis: A Randomised, Placebo-controlled Trial. (27th April 2017) - Rubin, David T; Cohen, Russell D; Sandborn, William J; Lichtenstein, Gary R; Axler, Jeffrey; Riddell, Robert H; Zhu, Cindy; Barrett, Andrew C; Bortey, Enoch; Forbes, William P