Assertion: heart failure's cause | /r/HasProperty | warning signs of heart failure
Facets:
Source sentences:
text: American Heart Association: "Causes of Heart Failure," "Prevention and Treatment of High Blood Pressure," "Warning Signs of Heart Failure," "What is Heart Failure?
text: American Heart Association: "Causes of Heart Failure," "Warning Signs of Heart Failure," "The Impact of Congenital Heart Defects.