Therapeutic Drug Monitoring is More Cost-Effective than a Clinically Based Approach in the Management of Loss of Response to Infliximab in Inflammatory Bowel Disease: An Observational Multicentre Study

Guidi, L; Pugliese, D; Panici Tonucci, T; Berrino, A; Tolusso, B; Basile, M; Cantoro, L; Balestrieri, P; Civitelli, F; Bertani, L; Marzo, M; Felice, C; Gremese, E; Costa, F; Viola, F; Cicala, M; Kohn, A; Gasbarrini, A; Rapaccini, Gl; Ruggeri, M; Armuzzi, A