P.16.3 IMPROVEMENT OF APPROPRIATENESS AND REDUCTION OF WAITING LISTS CONCERNING UPPER GI ENDOSCOPY OUTPATIENTS: A SINGLE-CENTRE PROSPECTIVE STUDY. (24th February 2016) - Baldassarre, G.; Messina, O.; Panozzo, M.P.; Tomba, F.; Sella, D.; Ferronato, A.; Vanzetto, E.; Toffanin, R.; Di Mario, F.; Antico, A.; Franceschi, M.