P.03.9 COMPARISON BETWEEN AN ASYMMETRIC (SMALL DOSE IN THE MORNING) AND A SYMMETRIC SPLIT-DOSE REGIMEN OF POLYETHYLENE GLYCOL PLUS BISACODYL FOR BOWEL PREPARATION FOR SCREENING COLONOSCOPY: A RANDOMIZED NON-INFERIORITY CLINICAL TRIAL. Issue 2 (15th March 2018) - De Nucci, G.; Andreozzi, P.; Redaelli, D.; Morganti, D.; Mandelli, E.D.; Omazzi, B.; Reati, R.; Arena, I.; Bezzio, C.; Saibeni, S.; Manes, G.