AF.26 EVALUATION OF GLUTEN IMMUNOGENIC PEPTIDES IN URINE OF CELIAC PATIENTS: A PROSPECTIVE TRIAL. (September 2021) - Scricciolo, A.; Marzagalli, S.; Roncoroni, L.; Lombardo, V.; Bascunan, K.; Vecchi, M.; Doneda, L.; Segato, S.; Costantino, A.; Elli, L.