title: Ustekinumab for Crohn's Disease.
authors.affiliation: Department of Medicine, Division of Gastroenterology, University of Western Ontario, London, Ontario, Canada.
authors.forename: Reena
authors.initials: R
authors.lastname: Khanna
authors.affiliation: Department of Medicine, Division of Gastroenterology, McGill University, Montreal, Quebec, Canada.
authors.forename: Waqqas
authors.initials: W
authors.lastname: Afif