1. P-155 Quantification of the Hypothetical Risk of Progressive Multifocal Leukoencephalopathy with Vedolizumab Treatment in Patients with Ulcerative Colitis and Crohn's Disease. (February 2017) Authors: Xu, Jing; Card, Timothy; Shick, Jesse; Palo, William; Liang, Huifang; Bhayat, Fatima Journal: Inflammatory bowel diseases Issue: Volume 23(2017)Supplement 1 Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗