The study performed to assess the eradication rate of H.pylori after 14 days treatment. The treatment is defined as those participants who confirmed on gastric or duodenal ulcer (including scar stage) or gastritis by endoscopy or the participants who received endoscopic treamtment for gastric polyp, gastric adenocarcinoma, confirmed to be H.pylori positive patients by the Biopsy or CLO test or Serological Diagnosis.