Higher Postinduction Infliximab Serum Trough Levels Are Associated With Healing of Fistulizing Perianal Crohn's Disease in Children. Issue 1 (1st January 2019) - El-Matary, Wael; Walters, Thomas D; Huynh, Hien Q; deBruyn, Jennifer; Mack, David R; Jacobson, Kevan; Sherlock, Mary E; Church, Peter; Wine, Eytan; Carroll, Matthew W; Benchimol, Eric I; Lawrence, Sally; et al.