Assertion: duodenal ulcer | /r/AtLocation | the lining
Facets:
Source sentences:
text: A duodenal ulcer is an ulcer that occurs in the lining in the part of the small intestine just beyond the stomach (the duodenum).
text: A duodenal ulcer is an ulcer that occurs in the lining in the part of the small intestine simply beyond the stomach (the duodenum).