Assertion: ulcer | /r/CapableOf | produce obstruction
Facets:
Source sentences:
text: Most ulcers can be treated without surgery when patients cooperate fully; however, surgery may be necessary in certain cases, such as when there is scarring of the ulcer (producing obstruction), recurrent bleeding, extreme pain, and perforation.
text: Most ulcers can be treated without surgery when patients cooperate fully; however, surgery may be necessary in certain cases, such as when there is scarring of the ulcer (producing obstruction), recurrent bleeding, extreme pain, and perforation.