title: Helicobacter pylori and gastroduodenal disease.
authors: Department of Medicine, National University Hospital, Singapore.
authors: I
authors: I
authors: Yap
mesh_terms: D005756:Gastritis / Q000382:microbiology*; D016481:Helicobacter Infections; D016480:Helicobacter pylori; D006801:Humans; D010437:Peptic Ulcer / Q000382:microbiology*