Malu, A O Prevalence of gastric and duodenal ulcers at endoscopy in Nigerian and British patients. [electronic resource] - African journal of medicine and medical sciences Sep 1995 - 239-41 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0309-3913 Subjects--Topical Terms: AdultAge DistributionDuodenal Ulcer--pathologyDuodenoscopyEnglandEsophageal Neoplasms--pathologyGastroscopyHospitals, TeachingHumansNigeriaPrevalenceStomach Neoplasms--pathologyStomach Ulcer--pathology