Mosquera, R A Prevalence of Helicobacter pylori at antral mucosa of patients with dyspepsia at University District Hospital. [electronic resource] - Boletin de la Asociacion Medica de Puerto Rico - 85-8 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0004-4849 Subjects--Topical Terms: Duodenal Ulcer--microbiologyDuodenitis--microbiologyDyspepsia--microbiologyFemaleGastric Mucosa--microbiologyGastritis--microbiologyGastroscopyHelicobacter InfectionsHelicobacter pylori--isolation & purificationHumansMaleMiddle AgedPyloric Antrum--microbiologyStomach Ulcer--microbiology