Acute duodenal ulcer | Acute duodenal ulcer without mention of haemorrhage or perforation | Acute duodenal ulcer without mention of hemorrhage or perforation | Acute duodenal ulcer without mention of hemorrhage or perforation, without mention of obstruction | Chronic duodenal ulcer without mention of haemorrhage or perforation | Chronic duodenal ulcer without mention of hemorrhage or perforation | Chronic duodenal ulcer without mention of hemorrhage or perforation, without mention of obstruction | DU | Duodenal ulcer | Duodenal ulcer aggravated | Duodenal ulcer reactivated | Duodenal ulcer, unspec as acute or chronic, w/o hemorrhage or perforation, w/o ment of obstruction | Duodenal ulcer, unspecified as acute or chronic, without mention of haemorrhage or perforation | Duodenal ulcer, unspecified as acute or chronic, without mention of hemorrhage or perforation | Reactivated DU | Reactivated duodenal ulcer | Ulcer duodenal | Ulcer duodenal reactivated | Chronic duodenal ulcer without mention of haemorrhage or perforation, without mention of obstruction | Duodenal Ulcer | Duodenal Ulcers | Ulcer, Duodenal | Ulcers, Duodenal | Curling Ulcer | Ulcer, Curling | Curling's Ulcer | Curlings Ulcer |