The location of gastric ulcer.
D004381:Duodenal Ulcer / Q000473:pathology; D004386:Duodenum / Q000473:pathology; D006801:Humans; D011708:Pylorus / Q000473:pathology*; D013270:Stomach / Q000473:pathology; D013276:Stomach Ulcer / Q000175:diagnosis* / Q000473:pathology