OC.04.6 CIRCULATING PROSTAGLANDIN E2: A NOVEL POTENTIAL PROGNOSTIC BIOMARKER IN PATIENTS WITH HEPATOCELLULAR CARCINOMA. (September 2021) - Pelizzaro, F.; Kitenge, M.P.; Cardin, R.; Penzo, B.; Ponzoni, A.; Cillo, U.; Vitale, A.; Businello, G.; Munari, G.; Fassan, M.; Farinati, F.