S1219 Prediction of Surgical Intervention for Crohn's Perianal Fistula in Children: Predictive Patient Demographic and Anatomic Features by MRI. (October 2020) - Khan, Muhammad Rehan; Hull, Nathan; Inoue, Akitoshi; Ulrich, Jessica; Harmsen, William; Faubion, William; Fletcher, Joel; Absah, Imad