Surgical management of duodenal ulcer in Zaria, Nigeria.
D000293:Adolescent; D000328:Adult; D002648:Child; D004381:Duodenal Ulcer / Q000150:complications / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009549:Nigeria; D010438:Peptic Ulcer Hemorrhage / Q000601:surgery; D010439:Peptic Ulcer Perforation / Q000601:surgery