Laura Franceschini1, Donatella Bignardi2, Maria Beatrice Bilò3,4, Francesca Buzzulini5, Gabriele Cortellini6, Domenico Gargano7, Elena Pinter8, Roberto Battista Polillo9, Danilo Villalta5, Alessandro Farsi alessandro.farsi@uslcentro.toscana.it1 and AAIITO study group on Eosinophilic Esophagitis