PC.01.8 SERUM DETERMINATION OF SQUAMOUS CELLULAR CARCINOMA ANTIGEN AS A BIOMARKER OF BARRETT'S ESOPHAGUS AND ESOPHAGEAL CANCER: A PHASE III STUDY. (24th February 2016) - Maddalo, G.; Marafatto, F.; Fassan, M.; Cardin, R.; Piciocchi, M.; Pozzan, C.; Zaninotto, G.; Ruol, A.; Castoro, C.; Rugge, M.; Farinati, F.