title: [Gastritis, duodenal ulcer and Helicobacter pylori].
authors.forename: E
authors.initials: E
authors.lastname: de Arzua Zulaica
mesh_terms: D004381:Duodenal Ulcer / Q000209:etiology*; D005756:Gastritis / Q000209:etiology*; D016481:Helicobacter Infections / Q000150:complications*; D016480:Helicobacter pylori; D006801:Humans