OC.07.2 FUNCTIONAL HEARTBURN OVERLAPS WITH IRRITABLE BOWEL SYNDROME MORE OFTEN THAN GERD. DEVELOPMENT OF PREDICTIVE MODELS WITH NOMOGRAMS. (24th February 2016) - De Bortoli, N.; Frazzoni, L.; Savarino, E.V.; Martinucci, I.; Frazzoni, M.; Tolone, S.; Marabotto, E.; Furnari, M.; Bodini, G.; Fuccio, L.; Bellini, M.; Savarino, V.; et al.