1. OP19 Classifying perianal fistulising Crohn's Disease: An expert-consensus to guide decision-making in daily practice and clinical trials. (21st January 2022) Authors: Geldof, J; Iqbal, N; LeBlanc, J F; Sawyer, R; Buskens, C; Bemelman, W; Gecse, K; Lundby, L; Lightner, A L; Danese, S; Spinelli, A; Carvello, M; Faiz, O; Warusavitarne, J; Lung, P; De Looze, D; D'Hoore, A; Vermeire, S; Hart, A; Tozer, P Journal: Journal of Crohn's and colitis Issue: Volume 16(2022)Supplement 1 Page Start: i021 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗