title: [Helicobacter pylori and peptic ulcer hemorrhage].
authors.affiliation: Hospital Angeles del Pedregal, México DF.
authors.forename: Mario Arturo
authors.initials: MA
authors.lastname: Ballesteros Amozurrutia
mesh_terms: D016481:Helicobacter Infections / Q000150:complications*; D016480:Helicobacter pylori; D006801:Humans; D010438:Peptic Ulcer Hemorrhage / Q000209:etiology*