http://www.heart.org/HEARTORG/Conditions/HeartAttack/PreventionTreatmentofHeartAttack/Aspirin-and-Heart-Disease_UCM_321714_Article.jsp
Learn about the use of aspirin therapy for patients who've had or are at high risk for a heart attack, unstable angina, ischemic stroke (caused by blood clot) or transient ischemic attacks (TIAs or "little strokes").