![Circulating Anti-Helicobacter pylori Immunoglobulin A Antibodies and Low Serum Pepsinogen I Level Are Associated with Increased Risk of Gastric Cancer]()
Circulating Anti-Helicobacter pylori Immunoglobulin A Antibodies and Low Serum Pepsinogen I Level Are Associated with Increased Risk of Gastric CancerAromaa, A.; Kosunen, T. U.; Knekt, P.; Maatela, J.; Teppo, L.; Heinonen, O. P.; H rk nen, M.; Hakama, M. K. · American Journal of Epidemiology · 1996