P.01.8: Gerd Risk Factors in Different Epidemiological Settings: Results from a Structured Questionnaire on a Sample of 545 People. (15th March 2017) - Miraglia, C.; Scida, S.; Uziel, E.; Capasso, M.; Cesario, S.; Speroni, S.; Masciangelo, G.; Landi, S.; Grillo, S.; Bertelè, A.; Franzoni, L.; Di Mario, F.