OC.12.2 THE REAL-WORLD LONG-TERM EFFECTIVENESS OF VEDOLIZUMAB IN INFLAMMATORY BOWEL DISEASES: A SINGLE CENTER OBSERVATIONAL STUDY. (25th March 2019) - Macaluso, F.S.; Croce, A.; Orlando, R.; Ventimiglia, M.; Sapienza, C.; Gambino, F.; Orlando, E.; Grova, M.; Rizzuto, G.; Renna, S.; Cottone, M.; Orlando, A.