Corrigendum: Exposure—efficacy Relationships for Vedolizumab Induction Therapy in Patients with Ulcerative Colitis or Crohn's Disease. (29th January 2018) - Rosario, Maria; French, Jonathan L; Dirks, Nathanael L; Sankoh, Serap; Parikh, Asit; Yang, Huyuan; Danese, Silvio; Colombel, Jean-Frédéric; Smyth, Michael; Sandborn, William J; Feagan, Brian G; Reinisch, Walter; et al.