Supported by the National Key Basic Research Program of China (G1998051203)National Key Technologies R&D Program of China during the 10th Five-year Plan Period,2001BA703B06(B)
AIM: To compare the distribution of virulence-associatedgenotypes of Helicobacter pylori(H pylori) in two areas of north China with different gastric cancer risk and furthermore probe into the pathogenicity of the bac...