Assertion: aspirin | /r/Causes | gastrointestinal bleeding
Facets:
Source sentences:
text: Aspirin is an effective analgesic for acute pain, although it is generally considered inferior to ibuprofen because aspirin is more likely to cause gastrointestinal bleeding.
text: Aspirin is much, much more active against COX-1 than COX-2; that's why it can protect the heart but also cause gastrointestinal bleeding.