1. P458 Safety and Potential Efficacy of Escalating Dose of Ustekinumab in Pediatric Crohn's disease (the SPEED-UP study) - A multi-center study from the paediatric IBD Porto group of ESPGHAN. (21st January 2022) Authors: Yerushalmy-Feler, A; Pujol-Muncunill, G; Martin-de-Carpi, J; Kolho, K L; Levine, A; Olbjørn, C; Granot, M; Bramuzzo, M; Jonsson Rolandsdotter, H; Mouratidou, N; Hradsky, O; Scarallo, L; Matar, M; Magen Rimon, R; Rinawi, F; Shalem, T; Najajra, H; de Meij, T; Aloi, M; Velasco Rodríguez-Belvís, M Journal: Journal of Crohn's and colitis Issue: Volume 16(2022)Supplement 1 Page Start: i435 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗