P.01.15 TUMOUR TYPE AND SIZE ARE PROGNOSTIC FACTORS IN GASTRIC NEUROENDOCRINE NEOPLASIA: A MULTICENTRE RETROSPECTIVE STUDY. (25th March 2019) - Campana, D.; Massironi, S.; Faggiano, A.; Rinzivillo, M.; Lamberti, G.; Sciola, V.; Lahner, E.; Manuzzi, L.; Colao, A.; Annibale, B.