Fig. 1From: An improved quantitative real-time polymerase chain reaction technology for Helicobacter pylori detection in stomach tissue and its application value in clinical precision testingComparison of the number of H. pylori copies between different groups. a. Gastric precancerous patients and other H. pylori-positive patients. b. The vacA s1- and the vacA s1+ groups. * p < 0.05Back to article page