Enrolling by Invitation Differences in Gastric Microbiota in Patients Who Were Infected Between CagA Positive and Negative Helicobacter Pylori NCT06785922 Conditions CagA, Digestive System Diseases, Digestive System Neoplasms, +9 more Locations Faculty of internal medicine siriraj hospital, Mahidol university — Bangkok Noi, Bangkok, Thailand View Trial Details