1. P811 Combination biological or small molecule therapy in patients with refractory inflammatory bowel disease: a multicenter Brazilian experience. (30th January 2023) Authors: Feitosa, F; Parra, R; Queiroz, N; Flores, C; Schiavetti, B; Azevedo, M; Porto Alegre Rosa, C; Chebli, L; Chebli, J Journal: Journal of Crohn's and colitis Issue: Volume 17(2023)Supplement 1 Page Start: i944 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗