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