1. P391 Are cut-off ranges of Infliximab serum levels in Crohn's disease always the same in clinical practice?. (25th January 2019) Authors: Valdes Delgado, T; Guerra Veloz, M; Belvis Jimenez, M; Maldonado Pérez, B; Castro Laria, L; Benítez Roldán, A; Perea Amarillo, R; Merino Bohorquez, V; Calleja Hernandez, M A; Ortiz, T; Caunedo Álvarez, A; Vilches Arenas, A; Saez Diaz, A; Argüelles-Arias, F Journal: Journal of Crohn's and colitis Issue: Volume 13(2019)Supplement 1 Page Start: S303 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗