OC.08.1: Comparison of two Scoring Systems for Endoscopic Evaluation of Ulcerative Colitis Patients: Inter-Observer and Central Reader Agreement, and Role of an Image-Based Training. (15th March 2017) - Pagnini, C.; Desideri, F.; Mariani, M.B.; Corleto, V.D.; Lorenzetti, R.; Di Giulio, E.