Cite
MLA Citation
Patrick Gagnon-Sanschagrin et al.. “S823 The Impact of Treatment Switch Among Prevalent Patients With Crohn's Disease Treated With a First-Line Biologic: A U.S. Retrospective Claims Database Study.” American journal of gastroenterology, vol. 117, n.d., p. e592. http://access.bl.uk/ark:/81055/vdc_100169531126.0x000054