Assertion: warfarin's blood | /r/HasProperty | severe headache
Facets:
Source sentences:
text: Signs and symptoms of major bleeding include red or dark brown urine or stools; blood in vomit or saliva; severe headache or abdominal pain; prolonged bleeding that persists >10 minutes; large, unexplained bruises; dizziness, faintness, or weakness; extremely heavy menstrual flow; and vaginal bleeding.26