1. P671 Effect of genetic polymorphisms in the folate pathway on the efficacy and safety of methotrexate in Crohn's disease. (27th May 2021) Authors: Salazar, J; Gordillo Abalos, J; Fernández, A; Esteve, M; Pérez Gisbert, J; Busquets, D; Lucendo, A; Márquez, L; Guardiola, J; Martin, M D; Iglesias, E; Monfort, D; Villoria, A; Cañete, F; Bell, O; Ricart, E; Zabana, Y; Domènech, E; Garcia-Planella, E Journal: Journal of Crohn's and colitis Issue: Volume 15(2021)Supplement 1 Page Start: S593 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗