Peptic ulcer in the Burundi Republic and Nile-Congo watershed.
D002063:Burundi; D003223:Congo; D004032:Diet; D005260:Female; D005743:Gastrectomy; D006801:Humans; D008297:Male; D010437:Peptic Ulcer / Q000453:epidemiology* / Q000209:etiology / Q000601:surgery; D011707:Pyloric Stenosis / Q000453:epidemiology; D012923:Social Class; D014628:Vagotomy