Romero Gómez, M [Prospective study on the influence of gastroduodenal ulcer hemorrhage on the diagnostic methods in Helicobacter pylori infection]. [electronic resource] - Gastroenterologia y hepatologia - 267-71 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0210-5705 Subjects--Topical Terms: AdultAgedBiopsyBreath TestsData Interpretation, StatisticalDuodenal Ulcer--complicationsFalse Negative ReactionsFemaleGastric Mucosa--microbiologyHelicobacter Infections--diagnosisHelicobacter pylori--isolation & purificationHumansMaleMiddle AgedPeptic Ulcer Hemorrhage--complicationsProspective StudiesStomach Ulcer--complicationsUrease--analysis