Assertion: ulcer | /r/AtLocation | the end of the stomach
Facets:
Source sentences:
text: Ulcers located at the end of the stomach, where the duodenum (start of the small intestine) is attached, can cause swelling and scarring, which can narrow or close the intestinal opening.
text: Ulcers located at the end of the stomach can cause swelling and scaring.
text: Ulcers located at the end of the stomach where the duodenum is attached may cause swelling and scarring.