Gastric (GC) and non gastric cancer (NGC). The role of of helicobacter pylori (HP) infection: D. Vaira, M. Menegatti, M. Miglioli, M. Vergura, P. Azzarone, C. Ricci, F. Landi, 1J. Holton, G. Biasco, A. Petronelli, B. Massardi, L. Gatta, 2R. Gusmamli, 2F. Milesi, 3P. Maiolo, 3A. Casadei, 4M. Rodi, 4W Giorcelli, 5A. Zambelli, 5G. Lupinacci, F. Pannuti, L. Barbara. 1st Medical Clinic, University of Bologna & Oncology Dept. Bologna; 2LGI Sections: Treviglio(BG) 3G.B. Morgagni, Forli, 4S. Andrea, Vercelli, 5Maggiore, Crema, Italy; 1Dept. of Microbiology, University College London, UK