OC.08.2 RISK FACTORS FOR RELAPSE AND ROLE OF MAINTENANCE STEROID TREATMENT IN PATIENTS WITH AUTOIMMUNE PANCREATITIS: SYSTEMATIC REVIEW AND META-ANALYSIS. (25th March 2019) - Tacelli, M.; Magro, B.; Celsa, C.; Barresi, L.; Guastella, S.; Capurso, G.; Frulloni, L.; Cabibbo, G.; Cammà, C.