P.01.2 A NEW SYMPTOMS SCORE FOR ZENKER'S DIVERTICULUM TREATED BY FLEXIBLE ENDOSCOPIC SEPTUM DIVISION (FESD): A SINGLE TERTIARY CENTER RETROSPECTIVE EXPERIENCE. Issue 2 (15th March 2018) - Maselli, R.; Semeraro, R.; Di Leo, M.; Galtieri, P.A.; Ferrara, E.C.; Fugazza, A.; Anderloni, A.; Carrara, S.; Auriemma, F.; Troncone, E.; Attardo, S.; Nicoletti, R.; et al.