| http://www.w3.org/ns/prov#value | - Epigastric pain is the most common symptom of both gastric and duodenal ulcers and is characterized by a gnawing or burning sensation occurring shortly after meals with gastric ulcer and 2-3 hours afterward with duodenal ulcer [9].Alarm symptoms supporting the suspect of GI bleeding or ulcer perforation involve sudden, sharp abdominal pain, black or bloody stools, and bloody or coffee-like vomits.
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