Duodenal ulcer in Nairobi.
D000293:Adolescent; D000328:Adult; D001741:Black or African American; D044383:Black People; D002648:Child; D004381:Duodenal Ulcer / Q000150:complications / Q000453:epidemiology* / Q000601:surgery; D005260:Female; D006801:Humans; D007630:Kenya; D008297:Male; D008875:Middle Aged