Acute ulceration (stress ulcers) of the upper gastrointestinal tract.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D004381:Duodenal Ulcer / Q000401:mortality / Q000601:surgery; D005743:Gastrectomy; D006801:Humans; D008875:Middle Aged; D009657:North Carolina; D010438:Peptic Ulcer Hemorrhage / Q000401:mortality / Q000601:surgery; D010439:Peptic Ulcer Perforation / Q000401:mortality / Q000601:surgery; D011379:Prognosis; D011708:Pylorus / Q000601:surgery; D013312:Stress, Physiological; D014628:Vagotomy