AF.4 PERORAL ENDOSCOPIC SEPTOTOMY USING A LAPAROSCOPIC VESSEL-TISSUE SEALER FOR TREATMENT OF ZENKER'S DIVERTICULUM: FEASIBILITY AND SAFETY OF ENDOSCOPIC SCISSORS TECHNIQUE. (September 2021) - Di Mitri, R.; Mocciaro, F.; Conte, E.; Bonaccorso, A.; Amata, M.; Scrivo, B.; Lo Mastro, M.; Scimeca, D.